Is Win7 upgrade from Win XP viable

Can’t stand Win8 with a passion. XP is being phased out and I am left with a small office that has to upgrade, so is Win7 still viable?
Anyone know the lenght of support left for it?
Which flavor? Win32 will work for sure on the older machines that are switching from XP but don’t want to commit purchasing the software if it is not a good option.