A few final thoughts.
QV is as good as Bangkok Air except for the lack of dedicated lounges
Aircraft are fairly new and appear well maintained. This may have something to do with QV's affiliation with PQ's Discovery Air Pass.
Service is fine and as expected from the smaller SE Asian airlines.
The web-site is problematic since one cannot book on-line. There are no e-tickets.
Booking is difficult, time-consuming and frustrating.
Do not believe the prices posted on the web-site. YMMV. Be sure to verify prices in writing which I failed to do. Totally my fault.
E-mail communication is fast and responsive, but not always accurate.
Be sure to check, recheck and check again as to local conditions in respect to ticketing because they vary widely.
I spent more time communicating about booking, booking, getting tickets, and not sorting out problems than I actually spent flying.
Would I fly QV again? Absolutely, especially if their segments are part of a Bangkok Air Discovery Airpass package issued by Bangkok Air.
Would I try to book directly with them? Yes, but only if I was originating in Laos because of the ticket payment problems outside of the Lao PDR.
Would I fly their older YAK aircraft on some of the lesser domestic routes? Yes, advisably, but what other choice does one have? The choice is bus or 4-wheel drive on poor roads. Since one can rent a self-drive car in Laos, I might drive on some of the safer routes.