It is not the proposed physical aspects to paradise that bother me, it is the mental paradise that does.
To be in the JW interpreted biblical paradise, would be to not have the mental stimuation to read, discuss, or believe in different religions, thoughts, beliefs, opinions etc. There would be no counter-points or thoughts to anything other than man's interpretation, in particular, JWs' interpretation of the bible.
What is a human then? What makes us human? As we continually evolve and adapt to our environment, we are being 'rewarded' for critical thinking skills, problem solving skills, creativeness, etc. Where is all of that to go, if not fostered? Our wonderfully evolved brains would become mush as we only 'enjoy' life, but are not challenged by it.
Perhaps there IS alot of wonderful new things to learn, but why do it? What is the motivation to do anything??? "Ahhhh, I'll get around to it in the next 1000 years." All human DRIVE due to length of life would be gone.
Living forever is no prize if I can't read or speak or hear different opinions, (who will write books? who will be provocative? who will challenge us? who will challenge the status quo? etc) believe in what I want to or what feels right to me.
Watch the movie "Pleasantville" and you will see exactly what happens in paradise-like conditions.