I just ran it solo on Villainous at +3/x5 on my namesake BS/Inv scrapper (except Ripplesurge, who I cheesed out on at +0/x1). Probably could do it at +4/x8 now I know what to expect (except Ripplesurge, and I need to do some thinking about that.) Yomo is the closest thing I have to a badger, and my intention is to eventually solo everything I can reasonably expect to solo. I think the powersets are pretty much middle of the road -- not overpowered and not a complete pile of crap.
As content, I like it, but it's wicked long. Now, I'm super glad I got to run it solo so that I have at least an idea of what's what. I'd look forward to someone putting together a guide on what to expect, including all the badges and the secret stuff I missed while chopping at stuff. My gut is always to chop up everything I see into little pieces. As far as reward goes, well, I guess it's ok. I mean, I can't solo a Hammy raid (yet) and I haven't tried to solo any of the TF/SFs that offer SHOs (and I doubt highly I can).
I doubt I would have been able to solo without temp powers, since my DPS isn't top notch and I still need those envenomed daggers. I'll probably try it solo on level 2 or 3 at some point, but I'm not going to try it at 4 or 5 without an experienced team.
Good stuff overall.