I've played a good amount of Live NL100 (NL200 only twice but it felt pretty much identical) and each even though I've never got past NL25 online I'm much more confident that I can beat them games than NL25 Online.
I'd love to have the bankroll to give it a real shot sometime that's for sure.
Each table at my local Casino seems to have 3/4 Decent Regs 2/3 Bad Regs and the rest being drunks or guys looks for casual fun with their £50 or so.
Its a strange game to start with, people opening 4+BB's from any position and getting 5 callers ♦
Maybe stand and watch for 10 minutes or so first and then take em all out
Some places give out "Rake Free Tickets" to the first couple of players that sit down too, so be sure to ask or even phone up and get there early if you can get one.