I've booked a short break in a log cabin in a forest, and all the user reviews rave about how fantastic the hot tub is. It's never particularly appealed to me to sit in the open air in a big bath.
You need to sit in a hot tube in the winter, particularly if there is snow on the ground.....fabulous.
Also, it depends upon who you are in the tub with...........if it is your husband then it is a waste of an exhilarating experience ;-)