Filter basket is very touchy and machine will go into error mode easily.  Filters need to be replaced frequently but can be cleaned easily if you rinse under a sprayer upon removal.  Otherwise, this thing is great.  Heats to 104 and will stay for a bit; once jets come on it will usually drop to 102 fairly quickly but all this is dependent on ambient temperature.  Never had to re-inflate.  Solidly built.