Dwyer never talks about units won/lost, I think for good reason. It'd be tremendous amount of work since he has so many videos up, but someone could probably go back and "bet" one unit on each bet he advises and see where he stands today. My prediction is that he's even at BEST. Maybe some of us could divide the work up and do it? I'd be in.
I always watch Dwyer's videos and consider them worth a small amount, but overall I don't feel he's as good as I am. He straddles every goddam fight and I know he's been bitten in the ass plenty of times for doing so. His straddles are often -EV. He also plays personal favorites a bit, despite honest attempts to not be biased. For example he picked Roy Jones to beat Calzaghe. Need I say more? I almost never bet a -300 or worse, but when I saw Joe at ONLY -330, I made the biggest bet I'd made in a while.