Despite what a lot of folks here and in the land of Blog say (and hey - do whatever works for your body), I don't think it's a good thing, generally speaking, to drink a lot of young (< 10 year old) sheng pu'er. I'm honestly a little shocked at the amount of it that some people seem to drink. I drink it occasionally to try and figure out which teas to buy, but other than that, I rarely drink it.
Also, I think it takes a while for your body to get used to the flavors. The first time I tried a decent pu'er (I think an aged shu, but don't remember for sure), it reminded me of a farm type taste / smell... but in a positive way. It made me nostalgic for my great-grandfather's farm. I wouldn't say I loved the taste at first, but afterwards, I started craving it. Sometimes I notice that with certain teas - whether or not I appreciate it fully at the time, if I start craving a tea after having drank it, I consider that a good sign.