I wasn't going to be using it as a means to boost my own characters, I've been doing that just by boosting RAF linked accounts in instances.

It was to help my GF level a bit quicker in Northrend. She's trying to beat one of the guildies to 80 - both are rogues....but the other guildie has his lvl 70 welfare PvP gear...so has a wee bit of an advantage.

I was wiped after work yesterday, so didn't try it out.