I prefer Key Limes, they have a better flavor and texture, though they are not as tolerant to cold temps as the limequat. They grow similar so it will all depend on your winter temps

I thought that I preferred Key Limes because of the flavor and compact, upright growing habit of the tree. But now I prefer the Eustis Limequat. More Juice, almost the same lime flavor, but very leggy. My actual Favorite is the bearss lime. Leggy as well.

limequat also has the advantage of flowering several times per year and then having fruit that is ripe several times per year. the fruit can vary a lot is size from about the same size as Mexican lime to a little less than half the size. they are a little different in taste, but not much. limequat is still distinctly lime flavor.
Mexican will have a lot more fruit but only for one season per year.

You may want to consider a third choice. Look for one fairly new to California called the "Castello Lime" the fruit is a little larger than the mexican lime and it is seedless like the bearss. If you decide on the mexican lime try to get the "thornless" version. It usually produces less fruit but still should be enough for personal use as they don't hold on the tree for long periods anyways. But when it comes time to prune and harvest you will be happier with no thorns.

My mexican lime flowers and fruits constantly throughout the year
I am never without flowers or fruit

My apologies! I sometimes forget that different climates can have a dramatic effect on fruit production and even characteristics.

orchid,
that is good to know, it's clearly a one season tree here, but we do have a VERY different climate.
dittos citruse,
that is... unless..... Orchid, any chance you have a limequat? try tasting the rind, is it a little bit sweet?

nope
its a key/mexican lime
They should be everbearing, UNLESS it is a "thornless key lime" whick is crossed with limequat and not everbearing

the reason I ask is that there have be limequat sold under the name mexican lime.

What have you decided? I have all three Limequat in my garden. I use the juice in place of lime juice. Only Tavaras limequat producing but I have hope for the Eustis and Lakeland to fruit this year. If you are looking for Lime juice I would look for Bearss (Persian) lime. My Tavaras provides juice all year and is very ornamental with its copious amount of teardrop yellow fruit all year long.