Good news, everyone!
I have been playing LoL on the Garena client
with a couple of mates because we've been getting pings of 70-80 instead of the usual 180-220 for NA. I think the Garena servers are hosted in Singapore, so your ping will depend which ISP you're with and which state you're in. iiNet from WA gets 70-80 ping, and it's exactly as amazing as it sounds.
They also hand out rewards
as your Summoner levels up. At level 2 I got a free 1-day XP boost and chose Ashe as my free hero.
The one downside is the queue times can be a little on the long side, anywhere from 1-5 minutes to sometimes longer. However, I'm also starting from level 1 so I'm hoping that will get better as I get higher. Also the players are generally rubbish, but I can't say this is a big change from the NA server.