Review title is Not as easy to operate as my previous one was. [SEP] Bottle doesn’t sit as stably as my old one.  If you push the plunger gizmo down too Quickly or too forcefully, the bottom will slide out from under it, which is annoying, so I’ll have to repurpose it for another use with a  non-toxic liquid to avoid damaging the surface I’m using it on.  Unfortunately I threw out the inside pump portion of my old device when this new one arrived and the pump middle section is 10 times harder to push down to make it pump than my old, original  bottle.  Not important to many, but My rotator cuff in my right shoulder is torn and atrophied and it’s much more uncomfortable to push down to get it to pump, so I’m not sure if I can continue to use it!  Had I saved the pump mechanism from my old bottle I could have swapped it out for this pump mechanism, which I don’t think is going to get any looser with time.  Would advise caution to anyone who has shoulder discomfort - you may want a different style!.