"Pain is Power"
Having seen the first episode, I want to say...Wow. Just wow.
You can tell everyone involved in this show was having fun, because it shows. For the hardcore fans, there's references and in-jokes galore for all things Sentai (and Metal Heroes!); for the more casual fans, this is a great comedy that subverts and shatters dozens of Sentai cliches in its first episode alone. Then for everyone else, the cast is so bizarre that you can't help liking them.
AkibaRed is very enjoyable as a red ranger, not only being a Sentai fan in his late 20's, but also obsessed with a moe anime character, which provides great reactions from those around him. AkibaYellow, so far, is interesting; she's a cosplayer, dressing up as a catgirl in the first episode, but the opening shows that she might be wearing a different cosplay every episode, and her personality might wildly vary depending on what she wears. The scenes she shares with AkibaRed are funny as heck, since she's the one who relates the most to his obsession with Sentai. AkibaBlue is the "sane" member of the group, which I'm taking as commentary on how blue rangers in recent years have been the quiet strong type, except Blue takes it the opposite direction by being quiet and timid.
The villain is certainly interesting (definitely not someone you'd see on an actual kids show), but I'll have to see more of her to make a better judgment (and oh boy, we'll be seeing a lot more of her next episode...if you know what I mean). My only main complaint is the way that the "Grand Delusion" powers supposedly work, but we'll have to see how that plays out as well...
Overall, I give episode 1 a solid 9/10.