I'll jump on the bandwagon to say that I use my FA-V5 more than my nanoVNA-H4. I used it just this week to compare 'relative' Q at 7MHz of various of some moulded inductors for a Norcal NC40A that I am building.
In fact, there was a S2P "inductor challenge" on the groups.io VNWA group, and the FA-VA5 did ok on some frequencies.
va3rr