@India89 Hot tubs can help attract people to your rental. However, maintaining a hot tub and guest satisfaction is expensive, and you have indicated that you are a remote host.
Will you have a 24/7 maintenance contract with the company or a handyman who will service the hot tub before, during and after guests? Expect calls about cleanliness, lack of heat, too little water (not too many people understand that bodies displace water) chemical smells, broken covers, lack of lighting, privacy, non-working jets, etc.
Will you have a large enough hot tub for a 6 bedroom property? Are there any laws regulating the use of a hot tub if it is in a rental property and of a certain size? How will it be secured for safety?
How much does your water cost? How long will it take to do a water changeover and reheat? How much is your electric cost? Guests will leave the cover off during their visit, wash their animals in them, "adult party" in them, leave debris and clothing items in them ... I could go on.
Think carefully about this upgrade. I have hot tubs, but I also have a dedicated handyman for servicing. My (4 person) hot tubs cost me about $50 per guest booking in maintenance and utility costs, but they are an attractive amenity for my area, and I can charge a lot more per night than my competition because I have them.