[DennisvdG]

I want to use that slowmotion so bad but I really don't want to risk having to hard reset because I have a couple games where I just really really don't want to lose my progress. Should I just wait for RTM?

[gpobernardo]

Based on what I've heard/read, the slow motion feature indeed is already available but it sometimes (or most of the time) isn't working as expected (some hiccups, some functions are not working, etc.).

At this point, build 10581 is pretty stable to install on one's daily driver. I personally haven't had any serious problems with my upgrade (straight from WP8.1 - no hard reset done).

If all you're after is the slow motion feature, it seems best to wait for RTM at the moment. It may not be worth the risk (no matter how minimal the risk may be) to put your game progress on the line.

[a5cent]

I want to use that slowmotion so bad but I really don't want to risk having to hard reset because I have a couple games where I just really really don't want to lose my progress. Should I just wait for RTM?

I'd also say wait for RTM. From what I gather that could be closer to the end of December, precisely because MS still has to deal with all the issues potentially caused by upgrading without a hard reset. Those issues are irrelevant for the first W10 devices coming out, because for them there is no update process from WP8.1 to worry about.

In general, anything that isn't RTM could potentially require a hard reset for it to work well. I'm sure you already knew that, but were just hoping to get different advice ;-)

[920Walker]

If a hard reset will cause you to lose game saves and data, don't do it. While the slowmo camera function may work fine after the upgrade, other apps or functions may have issues that you cannot deal with warranting a hard reset. Too bad there isn't a way to simply backup data from any chosen app, like by long pressing an app and choose backup to cloud, but I'm aware of none.

[a5cent]

If a hard reset will cause you to lose game saves and data, don't do it. While the slowmo camera function may work fine after the upgrade, other apps or functions may have issues that you cannot deal with warranting a hard reset. Too bad there isn't a way to simply backup data from any chosen app, like by long pressing an app and choose backup to cloud, but I'm aware of none.

IMHO cloud backup really should be a mandatory feature. I wish MS would just refuse app submissions that don't include the feature.

[Ma Rio]

Ehh..why do people dread the hard reset? I'm completely on the opposite side. I wouldn't dare install a preview build if hard resets weren't possible. It improves your device so so much!
Also you can save most of your data. All files, and even some game saves (on onedrive). Though, I don't play games on my phone, so I really couldn't care less about it.

[Cruachan 11]

I'd say wait if hard reset is a showstopper for you. Every preview build where I've upgraded performance has been better after a hard reset. Improvement is less with each build, but it's there.

[DennisvdG]

It seems RTM is right around the corner so I'll just wait it out.

[DennisvdG]

Ehh..why do people dread the hard reset?.

Perhaps read the original post?