The bottom line here is: new faces doing the lesbo tango with toys. Each segment starts off with a brief "interview"; then the action starts. The camera work is more often than not jumpy and out of focus; but the action is generally above average.
Vol. 15 is the better of the two, as it is consistently hot, with best of show going to the Whitney/Veronica pairing. You can feel their arousal even before they kiss for the first time, and once they get going, look out! Second place goes to Umma and Kirstie, who obviously want each other and do their damndest to keep things rolling. (Better editing would have made this segment even hotter).
Things slack off in Vol. 16 until the tape ender with Kim and Selina, which sports some very intense pussy grinding as well as lots of licking and toys galore. Both volumes live up to the "First Time" billing, which, along with better than average action, make both well worth stocking in your all-girl section.