I've heard nothing but good things about the Ice and Brain chargers. But I haven't raced since the 80's, and back then it was all Dynamite.
I've owned at least 3 other Dynamites before the one I have now. Both of my kids own their chargers as well. Never had an issue with any of them. Each time I upgraded I passed the old one on to my family or friends in the circle of RC's. I know of 2 still in service. I upgraded to this about a year ago.
I got it for 90.00 at the LHS. You can read all the specs at the link. I don't know how well it works for matched type batteries and the high end stuff. Like I said I don't do that anymore, but it charges all my stick packs, Rx packs and even lipos for the planes and helis I'm getting into now.
You never specified what you were going to use it for. Some of the racers may disagree with me but if you're just goofing around, you can't beat it. Easy to use, reliable and will be around for awhile.
Why mess with a good thing, and it is just my opinion.