I was not impressed with the 830 during the time I had one. Very overpriced for its performance.
It had some of the same issues that I have just seen in general with the Windows Mobile platform across each model I've used ranging from the 520 & 521 to the 820 on up through the 920, 1020, 1520 and even the HTC One M8. As smooth as people try convincing me that the OS is, it just is not.
Really though, I am not sure if I should attribute this to the OS itself, or the developers of the apps.
For the last 2 months, I have been using an iPhone 6 as my daily device. First time using an iPhone on a regular basis actually.
The only issues I have had with it are related to the Swiftkey keyboard acting wonky within some apps and of course battery life. Being so thin, there is no real way around this issue.
But from my 2 month run here with it, I never realized just how well apps work with each other. Instead of opening a web browser to see something after tapping a link, it actually opens the installed app.
Again, is this an OS issue or a developer issue regarding Windows Mobile? I am not sure I really know the full answer to this since most top iOS developers do not develop for Windows Mobile as well.
The big comparison, that will be a more worthwhile discussion to me, will be when we get the 940 and/or 940XL and how it will shape up to the iPhone 6s & iPhone 6s+.