I got a similar impression from their Trollbox, before they disabled it. Have read about withdrawal issues as well but not experienced any myself. Their site has always been rock-solid for me, not a trade has been missed, which I think might be most important. I could probably deal with some withdrawal delays as long as they weren't permanent. Perhaps it is the exchange best suited to small fish like me. Their site even claims they keep the bulk of deposits in cold storage, so one could imagine that upon a large request, they have to manually shuffle some things around.