I have one for the same reasons as HH. I have an MX5 and it’s the only rack that will work but only because it’s a hard top.
I got the additional front wheel adapter so I don’t need to put it inside the car, which is equally difficult. It also gives you the additional sucker on the rear in case one comes unsealed.
It’s a fab carrier, very easy to put on and take off and takes up hardly any room. Security when on the car isn’t good but I rarely leave my bikes out of sight anyway. If you’re worried it’s a 2 minute job to run a cable to something or take the bike off and lock it up.
I’ve used it for road, HT and FS bikes and it’s perfectly fine above legal speeds (ahem… so I have heard)
Road bike
FS