I'll be completely real, no.
It's more like it added another folder to my bookmark bar with all of my lemmy instances. I do like the fact that the source code is open source and the overall engagement is through the roof. That's always a good sign.
While lemmy did populate faster than I expected, the experience is not quite the same. It honestly never could be due to the decentralized federated nature of it.
Reddit's mobile experience with patched apps is leagues ahead of lemmy. Desktop is pretty similar though, so all that remains is the size of the community.
I use both maybe 50/50 but my biggest concern is validated every day. The fragmentation is the thing that gets you. It basically places increased burden on the user to manage it. Not sure if there will be a seamless solution to it, or if I have to develop one myself.
600K in a month sounds about right. I have an install that's above 13 million, which is a little over 1 year of daily usage.
I also insta-install it when I see an ad and then remove it if it's not my device. The modern internet is shockingly bad without adblocking.