I had a Desantis Kingston but it didn't work out for me. The strap the holster mounts to just wraps around the bottom portion of your car seat. Every time I went over a bump, the weight of the gun would cause the strap to slowly slip a little, so eventually it rotated so my gun was under the seat. I could solve this by putting some pins through the strap into the seat so it couldn't rotate, but I found the strap dug into my butt uncomfortably no matter where I put the strap. If I'd had a relatively flat bench seat that may not have been a problem. I don't know. But with my bucket seats, there was always a depressed area of the seat where my butt goes that the strap would stick up out of and be irritating. You could loosen the strap to eliminate that, but then the gun would flop around. Another drawback to the Kingston is that it isn't easy to remove and install, and it's in plain sight. Anyone casually glancing into your vehicle will likely deduce that you carry a gun, and they might assume there's one in the vehicle. Criminals might break in as a result. I wrote a review of this holster on Amazon saying the same things.
I also reviewed the Pro-tech Seat Buddy on Amazon. It worked on much the same principle as the Kingston, but on the side of the seat so it wasn't as visible. There unfortunately was no way to get the Seat Buddy tight unless your seat back mount was very large, because the mounting strap was about seven inches around. The steel bar mounting my seat back to the seat bottom in my truck was only about an inch wide, so the Seat Buddy hung very loosely and flopped around quite a bit. You couldn't draw quickly from it at all.
I've looked at pictures of the steering column holsters but I can't figure out how they work. Every picture I've seen shows them mounted directly under the steering wheel, which would prevent the gun from being drawn from the holster. The picture on the Gum Creek site shows more room than the other pictures I've seen before, but it looks like the steering wheel is tilted fully up. I'm leery of having to add extra steps to the process of accessing my gun, particularly when it's mounted in a position that doesn't leave it in an optimal draw angle, which the steering column holsters seem to do. I've never seen one in actual use though, and I've never spoken with anyone who's had one, so it's possible I'm missing something.
The solution I came up with for myself may not work for you. I'm using a Blackhawk Sherpa holster on a quick disconnect mount. This works for me because I'm willing to drill holes in my center console. Many people aren't willing to drill in their vehicles. This is what it looks like in a vehicle:
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First, that's not my vehicle. The center console in my truck is between the front seats, so you can't really see the mount unless you're looking really hard. Most people wouldn't know what it was anyway. That's the mount on the left in the picture. The holster just clicks into it with a twist. the Serpa is also a retention holster, so the gun can't be removed without using the retention features. Mine uses only a button, but there are different retention levels in the Serpa line. My Serpa is for my Glock 21s. My Glock 30SF that I usually carry will also fit in it even though the holster isn't designed for it. It's a bit of a tight fit, but it clicks into place just as it should.
What works for you is really dependent on your situation, your vehicle and your preferences. There was a thread here not long ago where a guy had a custom injection mold made for his Glock to go in the center console of his BMW, but he was a big car customizing aficionado. So like I said, personal preferences. Good luck.
