Pump

Plan to pump at works twice a day Colleague here mostly are single ladies, not sure their supportivity, cos i will be away from desk when pump. Nursing room back n return 20 mins walk Another one is baby changing room nearer 3mins walk from my office, but inside have no chair and table, only a foldable diaper changing table. Thinking just sit on the floor and pump if dun wan walk so far to nursing room I have a 3 years old s9+ pump I will be pumping a lot during my maternity, now thinking whether to invest in spectra s1, review say is gentle and effective, price is cheap for Korea set. Hesitate whether to buy a new pump or not. Maybe only useful for first 3 months. Any advice?