Actually, I think they read the review about the cocktails and changed! I was there last weekend, first time visiting Chengdu.. and thanks to the Scavenger Photo Hunt super funny party ended up at Lan Town. Got a cider, had a look at the beer offer (not bad, but they could have more bottled Belgian ones!), then moved to cocktails (I would say quite cheap!).
I had a White Russian and a Long Island (my 2 favorites), my friends had Mojito, Tequila Sunrise, Baileys&Milk and another one I don't remember the name and I must say the alcohol content was quite good!
Anyway, good place, loved fuss-ball (and the owner destroyed me!!), owner and people are very friendly and a nice gang.. Definitely a place to visit again, if i'll ever be back in Chengdu!