Medela Sonata or Freestyle?

I still have 9 weeks until I can order my breast pump through insurance, and both of my top options require an upgrade cost (which is fine and I expected it). I will be taking 3 months of maternity leave, and phasing back in during the 4th month (10 hours in week 1, 20 hours in week 2, etc...). I work in a smaller office where there won’t be anywhere to pump privately except for a single-stall bathroom with a storage wall (because all of the offices/conference rooms have glass walls). Would love your feedback on if you use either of these pumps and why you chose them, any issues you’ve encountered, etc....