So in your experience as an older guy what is an appropriate age that they are looking for 
Personally i'd have thought they would prefer an older guy who was in his 30's as it's not too old for an early 20's girl whereas their attraction to a man is likely to decline as he gets older, that is unless they see the older guys as less hassle / more respectful etc 
Oh and the £100/mth puts me off as I can get an AW guaranteed fuck for that whereas I could be shelling out a ton for nothing on seeking
Tbf guys may well bang early 20s that they like on their in 40s and 50s. I go for the insta girl stunner types 18-23, they'll do first meet dinner and sex if there's attraction and the moneys right, with late 20s / early 30s generally.
There's definitely girls early 20s who will meet guys of any age, I see them on the seeking threads, but there not ones I'd personally go for.
In early 30s the sites great, still seems to be vfm for older guys too, I can't speak to their experience. Yeah there are months when no one fit comes along and it's money down the drain, its a sd site used for punting, so is more expensive.