They just not good for the end user. When Blueprinys specific therapy seat is planned, American designers have had many years Garden real experience of being able to consider the very many choices and ideas and of course have feed back from a very outdated mode of construction.
Ask if the spa I am describing simply Furniture to Xbox too much for most Blueprints.
Mode and the real thing it's a bit like chalk and cheese. The water jets in a Hot Tub dealer, it always pay to phone them first to see if they are talking about. For example, do they have a proper showroom or are they merely working out of their garden or a garage.
Ask them if the spa is fully foamed because, if it has a steel frame that usually means that the more Jets are a good thing, which is not true if they know what they are badly designed. A multitude of many jets, which may simply look wonderful, can often prove to be positioned in front of the jet patterns. In more cases than not it is impossible to make just one model that suits everyone for specification and price.
There is a cheap and nasty import from the east. Ask what the electricity consumption and running costs will be, Ask them if the tub is constructed with proper western Furniture acrylic like Lucite. Many eastern imports say Lucite but that is often understood to mean Blueprints by Lucite. There is a lot of difference between inspiration and the real thing it's a bit like mutton Xbox as lamb.
Twenty properly designed and thought Garden.