Yes, I am currently using it, I am 5 or so week into the change over from Estraderm patches. I had previously also tried Evorel, Oestrogel, and Evorel Conti.
I am noticing some fab differences so far, much more consistent dosing (i was losing patches through them peeling off, left, right and centre!)
I am also having none of the breathlessness I was getting, I am still unsure whether that was a side-effect or whether it was a lack of oestrogen causing it, but either way, it has gone. My palpitations are now few and far between too (a main sign for me that it was inconsistent previously).
I would say it took a good 3 weeks for it to settle, and I started on 2 sprays a day, but i now use 3 and that seems to suit me.
The spray takes up a really small space on your forearm, and dries super-quick (less than 30s to 1min)