Hi,being new to swg and a pool(17-33 inground vynl),I have only been running mine for four weeks now.500 lbs of salt with 17,800 gals of water keeps my Aquarite purring at 2800.My water is crystal clear and soft and all I had to add was approximatly 1/2 gal of muratic acid so far to keep the PH down.Makes my father in law jealous with his bromine slave pool.My chlorine has stayed in perfect range running at 20% from 9 am to 9 pm.next year I want to try and get it down to lesser pump time but i dont want to mess with a good thing with only a few weeks of swimming left before winter close up.I live in central Pennsylvania and our climate is close to yours as far as swimming season.I too researched the swg for a couple of months.My wife thought I was crazy spending so much time on the net.My father in law also thought I was crazy for trying something different.(he is old school).I really couldn't find any negatives.in fact,they have been saying that the cell life was approx. 5 years.That is for a full time pool.Since mine is only open for part of the year I think I might be able to stretch mine out for 8-9 years with proper preventive maintence.I say go for it,and enjoy more time at your pool doing what your supposed to,and save the work for punching the clock! Enjoy your pool! Matt