I guess in order of importance for me, the question would be:
How much time does it take to install and remove them?
How durable are they?
Are they prone to freezing up? If parked in an unheated building.
How much power do they use (rob) to operate? Do you need to operate in low (on a Mule) or will you smoke your belt.
How much do they cost?
I've learned that the individual mounting kit's (proper lug pattern hub, anti rotation hardware) is available to fit a used pair to your machine. I've seen them quite often on c/l for $2500-3500. I believe that they (Camso) have 2 basic models, quad/atv and utv. There's an outfit called atvtracks.com on youtube that has some helpful mounting, adjusting, and operating videos.Interesting. Thanks.
Or, as in my case, I wouldn't mind getting to parts of the property in the winter, but don't have too. So the bother of Re&Re and COST comes into play.