I don't understand why people dislike the Winmillion so much? Is it because they don't know how to use it? They don't like the looks of it? They don't play enough Twitchy-Based shooters to enjoy it properly? What?!
What is with players always go with the slow swords of the "nooby" Avenger and Faust? How come they are so popular? Yeah, they are powerful. But they are very slow and maneuverability is very bad.
The reason why I brought this topic up is because I want to sell my 2nd winmillion. It was dumb of me to buy another Winmillion thinking there would be a duel wielding option at some point in Spiral Knights. But I have doubts, and I don't think its going to happen. But that is not the point here! Even if I can't sell my 2nd Winmillion. I just want to understand why people always goes with the "slow" Sealed-Sword series, and why its so popular?
Also, I used the Sealed-Sword series before. It is awful because of maneuverability. Bad investment on my part. =( That is why I wanted to got rid of that Faust and I sold it for 19k! Not only I made a bad investment, but I sold the sword with a low price not thinking! I had to get rid of that awful sword so badly, that I didn't want to think of the profit! That is how much I absolutely hate the sealed-sword series.
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People like the sealed-sword series (try saying that five times fast!) is that, not only does it do excellent damage and wide reach, it also does either elemental or shadow damage, depending on which one you choose (also; keep in mind that until the update, Faust and Gran Faust were the only swords in the game to do good shadow damage (also also; Curse is nice, Gran Faust has it in spades)).
And by the way, maneuverability is not horrible with the series, just don't use the 3-hit combo _all_ the time. As a Leviathan Blade user currently, I'm personally not a fan of the slow combo, but I can see why people do like the swords.
And to answer your first question, Winmillion only goes up to 4-star range, some enemies go into guard-mode due to the projectile if you're out of slash range, it's charge attack is just plain awful, and a good amount of people are not fans of the forward momentum the Winmillion's combo grants it.