I have one as well, but I drain it during the summer months (Texas). Draining is more than just pulling the plug; you’ll probably need a shop vac to suck the water out of all the low spots, and everything below the lowest intake (probably 2-3 inches of water).
Some additions to the advice above. (Warning: I’m kind of an extreme DIY-er)
-They’re actually tall, and can be troublesome to climb in and out of, especially with wet feet. I built our back deck to hold the tub, and built sunken supports below the opening so it’s only a couple of feet above the deck itself. Much easier to use this way.
-Supports. Tubs are extremely heavy, and it’s important the supports be level with the surface, and with each other. Otherwise the tub can warp when it fills and settles. IMO, the installers are whoever the contractor found awake at the bus station that morning, so you’ll need to watch this. I had to finally shoo them away and take over this portion – they were content with gaps between some of the supports and the mounting portions at the bottom of the tub. After I got the workers out of my way, I installed shims to ensure everything was in contact before adding water.
-Power. As said above, it requires 220 service, and in my case I had to install a second breaker box specifically for the tub. I ran both 220 and 115 service out to the deck so I could have lights and outlets also. Remember to check codes, there are probably strict rules on proximity of switches/plugs to the tub itself (usually 4-6 feet to ensure no electrical equip can be reached by bathers) along with the usual GFCI requirements.
-The cover. A good cover isn’t an option, it’s absolutely necessary. I built a roof over the deck and tied it into the house, but still needed a cover to keep crap, pollen, and critters out. A good cover can also be heavy, and I’d recommend some thought as to how you’ll remove and replace it with each use. In my case, I built a small hinged platform that folds down (out over the yard) so bathers can simply push the cover off as they walk into the tub. When leaving the last bather can pull the cover back and the platform folds up against the deck, out of the way of the yard again. (I put privacy lattice all around the deck, so there’s a cover-sized slot for it to slide out of – I hope this makes sense, still on my first cup of coffee).
Anyway, add me to the “go for it” group. Soaking after a long day is worth the minor effort to maintain the water/etc. Mine is a bromine type, and is now in it’s 13th year with no problems.