I installed 10080 and yesterday 10136 on my spare 920. It is kind of stable but I would not use it as a daily driver.
With the Windows Phone Recovery Tool you can roll back if you want/need but I strongly suggest to first install the Recovery Tool on you PC and check if it works. Basically the rolling back is "easy" but as you can read in our forums sometimes the Tool can not be installed or the phone is not recognized. Reinstalling the Tool, using other USB cables, USB ports, using another PC or hard reset your phone clears most times these errors.
But if you try the tool before you go to W10 you know that it "work" and this is better then finding out that it does not work if you are on W10 and want to roll back.
Good luck.
PS
But do not forget:" If you can't do the time don't do the crime".