So I've been using Nitrogen since the start of football season. Primarily attracted to the use of bitcoins and the immediate deposit/withdrawal options. I've been a little disappointed that they have more juice than 5Dimes (at least within 24 hours of game time). The real problem, is that their lines have hidden juice. For instance, if you go to any of their college football lines right now and look at their lines (the standard is -107) and open a bet slip and enter 1.0 btc in the "to win" box, you will find you actually have to risk 1.07411 BTC to win 1 BTC. At -107, it should be risk 1.07 BTC to win 1.0. But they are hiding a little extra juice in their line. It is a small amount, and once you know about it, you can adjust as necessary, but I find it dishonest and unethical.
I guess 5Dimes will still be my primary book when the lines are the same....