I've used a PT SL+ for about a year and am 195lbs but was around 215 when I got it. Problem with just power is you can sit up and hammer for an hour and see a pretty high avg. power but speed will be in the tank. On the flipside you can tuck down and get more speed but power will be lower. It's trying to find that balance that's the challenge.

My numbers are similar to others. Not sure how much they mean but here they are (source PerfPro).

FTP: 237w
1 min: 309w
Max: 1137w
Endurance rides: 180w @ 18 mph @ ~4 hours
Training: 217w @ 19.6 mph @ 1.5 hours
Hammerfests: 240w @ 21 mph @ <1 hour (with usual max of 870w)
Sprint (sitting): 334w @ 30mph @ 10 seconds (with usual max of >1000w but it fades fast)