Ask HN: Has anybody here tried developing on the Blackberry 10 simulator yet?

Is it any good? It seems jampacked with stuff on face value[1] but how good is it practically? As an aside, do you think Blackberry can make a comeback with this?

[1] https://bdsc.webapps.blackberry.com/devzone/platforms

(I did download VMware Player and the simulator but it didn't work on my Fedora box on first go. I'm busy with something else and don't want to put a lot of time into getting it to work only to find it wasn't worth it.)