That Felo set is 20% off at that web site, which strike me as a pretty good deal.
I've got a few Felo kits...one of those 1/4 ratchet sets, handle + blades, and a nut driver set. The brilliant thing is that the handles have 1/4 hex holes in the middle and can be used as a t-handle. Quality wise, they seem quite good. If you plan on really beating on screwdrivers though, I'd buy the uber-duty Wiha or the Wera Chiseldriver (doesn't Felo make something like that? I seem to remember that they do).
Besides the quality angle, I'm mostly into keep all the fiddly bits in a case and taking the whole thing to a car.
Once you buy all the varieties of small kits, one thing you end up with too many of is bit sets. They always throw that into the deal.