Are there any alternatives?

As far as mice with fans built-in, there aren’t many. However, there are plenty of alternatives that have “holey” designs, including the Glorious Model O, Cooler Master MM711, and the SteelSeries Aerox 3.

　　

How long will it last?

With good care, the Marsback Zephyr Pro should last you about the years, mostly depending on the number of rage-quits you exert on it. The fan might also wear out if it’s used vert frequently, and cleaning the inside will be a challenge.

　　

Should I buy it?

Yes, but only if you’re prone to sweaty palms to the point of losing grip on your mouse. Otherwise, there are better alternatives. But at the current price of $59, it’s hard to go wrong with this mouse, even if you just leave the fan switched off most of the time.