I find this conversation interesting. I just left 5Dimes for Bovada and, I must say, I am really impressed. The LIVE wagering system is much nicer with many more wagering options. It is also cleaner and quite reliable.
I haven't had experience (yet) with testing/pushing limits but I have had experience with a payout. At least, the beginning of a payout. I requested 1K less than two weeks being involved with them and the payout has already been processed. According to the last update (which there have been many) I will receive a check within the next seven business days.
All-in-all, I have been very happy during my three weeks of use.