I've seen both Vicki and Roxy multiple times each, including a three-sum. I like both of them but personally I think I click better with Vicki.
Personality wise Vicki is quieter and more gentle but is just as friendly as Roxy. As for service they're very similar except Vicki doesn't do anal, although she has this party trick where she puts the condom on with her mouth but does so with out you noticing how she had got the condom, so for a second or two one thinks she's giving a ***. Other than that they're the same in regards to french kissing, daty, fingering etc., just a bit more gentle and slower.
While Roxy insists on you having a shower when you get there Vicki is ok if you've already had one just before you came over. I do wish she would turn off the music (she plays generic pop which I find a little annoying) but she does have muted porn playing on the tv.
As for looks, Vicki is certainly older than Roxy and than her stated age on her ad. To be clear I'm in my 40s and feel more comfortable with ladies of a similar age to me but if you too are comfortable with "older" ladies (which I guess you are if you've seen Roxy) then I think Vicki's face, while lined, is still quite pretty... and she has the body of a woman half her age, her photos are accurate. She's petite with boobs and butt that are a perky and firm handful.