After test riding a few of my friends' bikes I've decided to get the 2012 Sirrus sport. I am 5'5 with a 29.5 inseam and according to most sizing charts, I should be getting the Size small.
One guy at the LSB told me to try the size Medium which I thought was very comfortable (farther handle). He said that I should pick the biggest bike I can comfortably ride.

http://www.specialized.com/us/en/bc/...port%2FFitness

Just wanted to check with the experts here before my purchase. are there any downsides to getting a slightly larger bike?

Thanks!