Agree w/ everything that was said about the pros and cons. I left my bookie who runs an online site after NY sports betting was legalized..

Pros of the sites:
Can shop around for odds
Ridiculous amount of prop bets offered if that's your thing
Promo codes... a bit misleading sometimes but the free promo credits they were giving out to start were great

Cons:
Can't bet on credit (much preferred this and settle up when it gets high either way)
Taxes Taxes TAXES
Takes forever to get withdrawals (Caesar's especially)