I used BRY-97 one time, last year for an ESB. Lag time was 30 hours. It turned out fine but nothing to really write home about. It did seem to accentuate the malt flavors and leave the hops in the back seat I thought. I also noted that it took 5-6 months of cellar aging before the beer tasted really quite good, before that it was a little hazy and just kind of muddled... can't say for sure anymore as my memory is pretty bad. I still have two bottles left, I can taste one next week (I'm on-call for work right now, dang it). Got 78% apparent attenuation.
US-05...... well we all know what that one does, and it's pretty good. Attenuation is way higher at like 80-85%.