Done it already 
It's like being powerlevelled. I don't think I've ever gone 1-20 faster.
I've been running/playing in a corruptor team and it's exceptionally good fun - probably the best team mix I've seen yet in CoV, the combination of buffs, debuffs and attacks is excellent. We've been running about 3 rads then a mix of kin, dark and thermal (primaries are mostly fire and ice, with a rad in there too), at lower levels it's really amazing to watch the speed of it - I think with a couple of thermals there's not going to be too many problems with the alpha strikes prior to getting debuffs in as we level up - waiting to see how it goes but so far so good. I love fast paced play and watching characters that work well together and this team mix really does that for me.
Definitely the most fun I've had in CoV so far.
Individually rad/rads are quite effective, when I team with Nuclear Baggart (another rad/rad), we just rip through mobs. I have been reading about some of the CoH rad/rad defender teams and they sound awesome. Stacked debuffs and AM's are one thing, but these guys are running stacked assault and tactics too, they are hitting the damage cap as defenders!!
All this got me thinking.....anyone fancy a strike force or respec mission in an 8 - man Corruptor team? Doesn't have to be rad/rad, I reckon most corruptor powersets will complement each other. I'm not racing to lvl 40 or anything, but I'd love to see how quickly a team like that would rack up kills/xp, and what it would take in the way of enemies to slow us down.
Nuclear Baggart will be up for it (baby on the way permitting) and I know an excellent thermal corruptor called Fire Fly who I can probably persuade to come along for the ride. That's 3, anyone else (lvl23-26) interested?