Willow vs Elvie breast pump ??

Can I have any experiences or recommendations on which one to buy??

My plan is to strictly use one of these pumps at work while sitting at a desk since it is really hard to take breaks as I am the go to person at a nurses station in a hospital. I was hoping these would be discreet enough to run out back and pop them on and then pump lol

I hear willow is good because you can lay down with it but I won’t be doing that and I’m not sure about having to buy bags but I’d be doing that anyway with my medela pump I already have at home lol

I heard the Elvie sometimes leaks but I was hoping for some advice for people who have used them!

Thanks!!