Yes in contrast of iOS. That reputation is bullshit. Regular crashes of Mail, Safari as in multiple times daily. I've had the device freeze at least 2-3 times a week as well. In the year I've been using Windows Phone, IE mobile has crashed twice and the device hasn't failed once (Lumia 710).
Won't play mp3s - this is rife. The ID3 parser on iOS devices is a piece of shit: http://www.google.com/#q=iphone+wont+play+mp3s This has been known for literally YEARS and plagues all apple devices from iPod, to touch to iPhone to Mac.
Nokia Drive - do you even know what this is? It's not a Skydrive/DropBox clone. It's a fully blown 100% FREE offline turn by turn satellite navigation and mapping platform akin to your average satnav. It's pretty amazing and is a deal breaker for iOS:
http://vr-zone.com/articles/nokia-lumia-smartphones-get-maps...
Regarding Apple and Google native maps, see above again.
iOS's ActiveSync is a piece of shit. It doesn't work properly, duplicates my emails, mailbombs people etc. Now whoever's fault this is I don't know (it may be Microsoft?) but I'm not concerned about this - it just doesn't work properly.