Again, I haven't experienced them as a duo, but here is my experience with them on an individual basis.
Kelly - She remains a favorite of mine. She's a little older (I would peg her as probably 45+), she's got a little bit of a tummy on her, but a nice ass for someone her age. Where she really shines is her breasts. These are, to date, thee best set of tits I have come across. They're big, firm and an absolute delight to play with. Her sessions are what I would see as average. She gives a light message, good CBJ, is responsive to DATY and enjoys multiple positions. I usually see her for a HH @ $.20 and I can't remember what her rate is for an hour (maybe $.80?).
Angel - Saw Angel about a month ago for the first time. She's a very nice, down to earth lady. I'm guessing her photos are a bit old, as she didn't exactly look like her photos, but you could tell that they are her (also, she's closer to 40 then the advertised 30). She really wasn't a clock watcher...I called her for an outcall and before we got down to business we had a beer and just chatted for a bit. The closer to 40 age is showing a little bit on her body. Her tits are big, but certainly not as firm as Kelly's. Session average, again...CBJ followed up by some DATY (responsive) with a little CG, and finished up with...doggie I think? She didn't really blow me away, but I wasn't kicking myself for spending the money. Again, I opted for a HH @ $.50 and i'm not sure what her hourly rate was.
I hope that helps.
