Bit late replying , but just joined.
I have an AV8er Obeserver Lite bought 4 years ago. I had virtually had a work induced 'lay off' of nearly 3 years but I've got back into flying this year.
The kit is great. AV8er had a good write up in the first review of Pmotors in propellerhead in Skywings mag., a few years back. Mine is fine 4 years on! Changed carb diapragm last month( Walbro) other than that the machines has 'aged' well, if at all. The kit is very well built and although its an aluminium frame for lightness, very tough considering. However they have a new range now that I've not seen, so can't comment. Paul Taylor ( AV8er) gives good aftersales service/advice, as I had tons of questions on Paramotoring in general and engine maintenance( I did some training with him).
Hope this helps
Nick