I used m5 momcozy in my last pregnancy this time round im going for hospital grade spectra double pump
To add to Bethan's comment, I also ended up getting a Spectra - had to get it on eBay I think as it was American. I needed it to clear out blockages, which I had quite frequently. So the Elvie is good for on the go but I don't think is as powerful. Or at least the old model wasn't.
I loved my Elvie Stride and had a double. I cant fault it.
I absolutely adored my Elvie and although it's really expensive, I'm going to buy the newer model for my new baby (my 2nd). Also going to get a double. I don't splurge on much but I think this is worth it.