We bought a hot tub from Costco about three years ago. It wasn’t the cheapest one but was definitely on the cheaper end. I don’t have many complaints there, but I also have no experience with “nicer” ones, so it may be that I don’t know what I’m missing. The maintenance has been surprisingly minimal once I realized to only focus on the chlorine and pH. The electricity went up but not significantly. I can’t give specifics on what it is because it’s been too long. It definitely gets a lot of use. Getting a bit less use now that I finished a small 4x6 sauna but still definitely used regularly.