It's the one I use and I love it.
The thing about meters is that if you use the same one consistently, then those numbers mean what they mean for your cat. There is always a margin of error of up to 20% with all meters. Some people claim they measure on the low side to help prevent hypoglycemia for people, but why would the companies take that kind of risk?
Someone posted about how animal blood platelets are a different size than humans'. OK, but we aren't measuring blood, we're measuring the glucose in the blood. I don't know the mechanics/electronics behind how they work though.
You could get a second meter as a back-up (in fact, that is recommended, what do you do if the battery suddenly dies or you drop it in water?) and compare the two. I compared the Aviva with the True Track and the True Track generally read higher at high numbers, but low numbers they were usually within 10 of one another.
I don't worry about my meter - it works with very little blood, every time, except when I mess up and think I have enough when I don't, partly because it takes such a small drop. I wasted more strips with my old True Track meter. Many people use the Reli-On brand and it was rated very highly by Consumer Reports, as well as many members here.