Yup I got the new Pitbull Trialer Restraint. Top notch construction and it's an amazing system. Main difference between the two is with the Pitbull, your rear tire stays on the ground. I had no problem loading and unloading my bike with the new system by myself. I highly recommend the pitbull version. Tie downs suck!
They're sometimes hard to line up. You have to have the bike absolutely straight to get the bolts in. You also need to have a hollow axle and can't have a cotter pin in your axle bolt since you have to slide the shaft through.
The ones I've used are not universal. There are different spacers for different models of bikes to fit them properly. So if you don't trailer different bikes all the time, it's not that big of a deal.
The Condors work well and can do double duty in the pits.
Since I don't want to sound negative, they hold the bike vertically very well. There is no rocking left and right, so you can pack bikes in the trailer and they don't rock at all!