I have one ive used on a few backpacking trips. I would say that if you are using it for preps, car camping, ect. its great. Its solid, strong, works well and filters will probably be around for a while. I havent tested it long term, however reviews indicate it stays solid.
But, if your going to backpack with it, it is very heavy. I know a lot of people who choose lighter MSR filters or other types of sterilization.
PRetty sure amazon is your friend on this one, or anyone who matches amazons pricing.