I have a Preciso, what do you want to know? It's pretty sturdy, quite heavy. Casing is very easy to pull off if you need to calibrate, clean, or just want to look inside. It's pretty well made. Has far less electronics than the smart grinder from what I can tell.
Indeed with the Preciso you would have to take it back to where you bought it (5senses?) Whereas with the smart grinder, I guess you just stroll in to myer (or wherever you bought it, and get a replacement).
I should mention, 5Senses customer service is outstanding.