I'm kinda split about this episode. the idea of reclusive, bad asgard is actually quite intriguing and they showed a few nice moves and techs in the first part. but when they show us a race that had a good part before and was fairly proficient at things, they just cannot let them do such horrible mistakes and behave like the classic idiot villains.
however, I don't really believe that ice world was their main base of operations. for that its way too small. for a culture to survive 10.000 years it must take a few more than just a handful of individuals, even with clones. and the technological issue. well, strange, since they showed some advanced stuff like the intraatmospheric jump, the shield penetration, the makeships elevator. but then those weak ships. on the other hand the ships did appear fairly small. I mean a puddle jumper also isnt exactly a match for a wraith cruiser (is it?) even though it has vastly more advanced technology. that, and lets not forget: these guys do not have the 10.000 years of scientific advancement that the main asgard had. not at the same level, not with the numbers and resources they had. as such, it would be pointless to argue why they are not as strong as the asgard were at their hight.
in sum, a few interesting ideas thrown in, would like to see them again in the future with another plan to rebuild their strength. but they should not do those stupid things like leave the prisoners alone, disregard emergency commands, limitations to their battle armour, etc. etc. cold, efficient, ruthless, but intelligent in doing so please, these are not backwater idiots just with guns.
btw, one leads to wonder: when the ancients first activated the device and saw their side effects, why didnt they just prohibit gate travel. were there so many other species then that used them? couldnt they just shut them down? I mean hey, use the device and let the wraith who discovered the effects rot for as long as it takes them to die through hunger and be done with the issue. uncomfortable, but much less than death and defeat.