I saw some, but never finished it.
I only saw it as decent. I could never get into it.

Is there any series that doesn't generate mixed opinions? I can't think of one. I'd say go for it if it interests you.

Well, opinions on Double and OOO tend to be pretty solid across the board of "Good." Fourze and Den-O are also relatively popular, and only tend to get decried for their more "Fun" spin, rather than being serious. Gaim is also pretty solid, too.
I think those 5 tend to be the KR series that are almost universally praised.

I actually haven’t seen Dragon Knight save for a few clips I stumbled across on YouTube and elsewhere. I’ve read that it received mixed reception at the time of its release, and the critique the series receives today seems to be mostly negative. But it’s apparently a better show than Masked Rider. A few people I’ve spoken to on other forums, however, have praised it and said that this is what got them into Kamen Rider in the first place.

Anyway! I’ve just watched Kamen Rider The First.

I'm so sorry.

\o/, why? XD

That was the probably the second worse piece of Kamen Rider media I've ever seen :lol
Just slightly better than Decade

Now now, it could be worse. She could've watched The Next.

The fact that I'm mildly curious to see it terrifies me...

Oh!

Well I think The First is an “alright” film, actually. I mean, it isn’t anything spectacular or anything “to write home about”, but it’s okay.

And I like Decade! :p