I haven't seen this posted yet, so I thought I would mention it. I really enjoy two mounts I have from Lockwood... the lion and a horse. They look awesome and move very realistically, so I'm not sorry I have them!
I was considering "gifting myself" the unicorn, but I realized I haven't been using the LKWD mounts I already have because they are very laggy. It takes several tries in my inventory before they show up, even the horse mount in the prairie space (which is ironic, since it is a space made especially FOR the horse mounts). Often, they just don't show up at all. In addition, attempts to boost the speed of the mounts fail (generally half the time I press the square button, nothing happens). I read an info box once which seemed to indicate that adjusting the camera down, then pressing square, helps to engage the boost. However, this doesn't seem to be working particularly well either.
OK, to be honest, I am absolutely going to get myself that unicorn. But I might hold off until I find out if there are any fixes in the works to improve the laginess of the mounts.
Also, I wonder if the upcoming core update will result in an improvement in this area?