Decks require a lot of work no matter what stain you choose but I would need to know what you used last. Was it a solid stain? What brand was it. I have about 2000 sq ft of deck and it requires recoating about every 4 yrs at least the part around our pool and the part in full sun for sure . It is a pain but I don't like fake planks and I really can't afford dura -deck so thats it for me. We are just in the midst of doing our deck so have done some research too . We chose BEHR Weather Proofing all in one solid stain and sealer . We did a test last year with it and it stood up well over a year so we are doing the rest . IMO no deck finish lasts forever this comes with a 10 yr "warranty" IMO if it lasts 5 I am happy.