Hi grizzlyking.
I am not concerned with 3 way fridges I would just never entertain one, at the end of the day a compressor fridge is always going to perform better than a 3 way fridge as far as refrigeration goes end of, interestingly the VW California camper-vans are fitted with a compressor 12v (240v ac) fridge as standard from Dometic, so VW are fitting a £1000 compressor fridge instead of a £200 3 way, I think that tells it's own story.
Don't forget to leave a review of the French and other European campsites you have visited!
Unless you want to run it on gas of course as you'd need a 240v hook-up wherever you stop. No arguments for me re the efficency of compressors , they just aren't as flexible, hence the 3 way. At least these days compressors are much quieter than they used to be. Having the choice is good.
Amazing family weekend with old steam engines, classic car displays, market stalls, and full catering and bar. And camping on site - Save £25 by booking in advance.