My old job wasn’t very physical but a few times a year I’d be sent to install a ct. The first 7 or 8 days were very physical, positioning tons of equipment, pull a mile of cables. The hotel hot tub always saved me! Great for aching muscles! I be in it every night.
But for regular health benefit I prefer a sauna, wish I had one. Sauna’s are simple to use and quick. 8/10 minutes, rinse off, be dressed and ready in 20. A good sweat always makes me feel better. It’s why I look forward to summer temps, break a sweat at least once a week.
Tubs are more involved, maintain 400g of water, and a bit of planning to use it, takes me 20min to get warmed up. And I despise the chemicals in tub water also. It stinks for starters and chlorine is a weapon. At least the way some hotels use it.
A hot tub does help sore muscles, but for me a long hot shower helps just as much. Last time I hurt my back I got a shower chair, just sit and let the hot water run. Never cared for heating pads though, too concentrated. Better to heat up the whole body i think.
At the end of the day I wouldn’t spend a dime on a hot tub. Rather have a sauna, it’s something I know I’d use.