Breast Pumps

I’m looking for a portable pump as the only room available for me to use at work is the furnace room so I will be spending lots of time in my car (I know I can get a car adaptor but I would rather not use my car battery or gas just to pump) - I was really hoping to get the spectra s1 since it’s rechargeable but neither company my insurance will work with offers it.

Today I stumbled across the Spectra 9plus and the Ameda Mya and I can get either through my insurance. Has anyone had experience with either one?