Any personal interest in win10 pretest (Insider)?

Question

Windows

Hello! Actually, the question is of interest, if there is a personal interest in testing MS Windows assemblies. Well, except for the free win10 for tests. For example, more space in OneDrive or some of their products as a bonus for use? And another thing, has anyone practiced using insider builds on their PC at work?
UPD: It's also interesting if one account is used on a PC and a laptop, but the PC license is not touched, but I plan to be an insider on the laptop. Will it crash on the PC where the account is used, the same as on the laptop.