Mega Man 11

It's Mega Man. Do you like Mega Man? You'll probably like this. Hate Mega Man? Probably won't dig this Mega Man either.
I'd say if you haven't played Mega Man before, you could do worse than start with Mega Man 11, I guess.
It's not the best game in the series, but it's far from the worst, bosses are mostly fun, music is awesome, graphics are cute and detailed, but still legible. The gear mechanics are a nice addition. Story is standard fare for the series, i.e. skippable but not horribad.
There's some replayability beyond the difficulty settings in the challenge mode (and some rather fun achievements), but if you're not a completionist, don't expect more than a few hours of fresh content. It's quality content, though, so it's worth the asking price. If you're on the fence or not familiar with the franchise, get it on sale maybe?

Capcom has been able to revive the saga in the best possible way. Mega Man 11 is a brilliant return to the series after a lengthy break.

Why It Rocks:
1- Outstanding modern 2.5D graphic style from the previous installments of the classic series instead of the retro, 8-bit style that has been overused in the series.
2- It is significantly more story driven than previous Mega Man games, going into the backstory behind why Light and Willy became enemies.
3- The new Double Gear System allows you to either move really fast or greatly increase your attack power; at the same time this mechanic can't be overused due to a very strict timer so the player can't abuse it.
4- Unlike Mega Man 9 and Mega Man 10, sliding and charging mechanics have returned.
5- Though not entirely gone, instant-kill death traps and cheap jumps are significantly less common than in previous games so the game relies less on fake difficulty.
6- For newcomers, lower difficulties place checkpoints more frequently and start the player with more lives which makes the game a lot less punishing for inexperienced players. In regular difficulties for more experienced players however, the game is as challenging as the other Mega Man games.
7- The ending takes a rather fun jab at the fact that Dr. Wily always begs for forgiveness every time he is defeated.
Something that I really HATED:
1- Both Proto Man and Bass don't appear in this game for some reason, not even as DLC.
2- There are still some cheap deaths occasionally, i.e. there are some places that trick you into falling to your doom.
3- Underwhelming Wily Fortress. It only has two proper stages, a boss rush without a Wily boss, and a very short fourth stage that leads to the Wily Machine 11.

I've been playing this franchise since Megaman 4, and I can honestly say that 11 is my favourite entry. I had more fun playing this Megaman game than any other thanks to the Gear system.
The Power Gear overcharges your Megabuster or charges up your special weapons. The Speed Gear dramatically slows time, allowing you to evade enemies and solve puzzles more easily. When Megaman is in critical health, you can use both Gears simultaneously. If overused, the Gear system overheats and weakens Megaman, so you must use it judiciously. All these factors make every single enemy encounter and puzzle room a joy to solve. You have so many options available even without any special weapons!
Megaman 11 is lots of fun. I recommend it to veterans and newcomers alike.

The perfect Mega Man for a wuss like me - played on Casual difficulty, purchased all the upgrades i could, used E-tanks on boss fights when I got tired of dying on them. But hey, at least I only purchased E-tanks for the Wily fight ... right?

Since Megaman 11 is pretty good, can we get Megaman Legends 3 or at least Megaman X9?

Solid addition to the series, and such a natural transition to 3D. Still rides the nostalgia waves of 9 and 10 without betraying the series' feel, *and* while entirely freshening up the formula with the double gear system.
TBH, mixed feelings about the DG system. Controller setup was awkward trying to bounce between those two powers, and the acquired boss powers, all while trying to do careful bullet-hell stye timed jumps to avoid certain death. The level design of 11 provides some incredibly difficult challenges (hello Wily stage 1 and all the fall deaths*), *but* it also provides extra lives and life-saving items like no other MM game before it. Meaning you enter -- at least after the first handful -- every single stage with upwards of 9 lives, 9 energy tanks, and 9 weapons tanks. Auto's store returns, and earning bolts to spend is easier than ever before. It honestly felt like I was on easy mode or something with how much money they throw at you, and how many zeros are on your bolt bank despite everything in the shop being dirt cheap.
Went on a bit of a tangent there, but gosh dang the store and plethora of cash felt weird.
The story's bonkers. I mean, it's Mega Man, so the story's always a shallow excuse to play, and mostly just there for kicks, but, like...Dr. Light gets called out by Wily for plagiarizing his work at one point, and...I mean, he totally does. And then he does it more. And again. And the game ends on a big laugh with him absolutely stealing the hell out of Wily's work for his personal benefit. It's kinda messed up, if you think about it. But this is Mega Man, so why bother.