Well, we have one capsule and will be getting another. The car is rarely driven so it stayed in the bubble almost a year. I doubt it caused the problem; the car is 20 years old and the leatherique is working - I just posed the question in case others noticed dryness as a result. the constant fan does result in the air changing frequently AND the humidity is quite dry in the winter. The garage is not heated but being attached to the house it never freezes. Yes, I am pleased with the bubble. It is a 2 person job to put the car in it and zipper it up. I put a car cover on the car as well in case the power failed - I did not want the bubble deflating and landing on the paint. Put the car in it while it is still a bit warm or the plastic will be very stiff. It is impossible to store the bubble back in the box that it came in so have a bubble storage place in mind for when the car is not in it.