asian pear ultra dwarf pacific grove from OSH
I picked up a bagged 20th century asian pear on ultra dwarf rootstock grown by pacific grove at OSH and am wondering if this is a good choice for the SF Bay Area, in El Sobrante. The tag said self pollinating. I am not looking for heavy fruit production, medium to light would be just fine.
I am new to fruit trees, and do seem to remember reading somewhere about the insignificance of ultra dwarf rootstocks, that its more about pruning. I do want it to remain small. They also had one on semi dwarf rootstock. Which is the better choice, and am I likely to have luck with the quality of fruit tree from OSH.