I have a couple of Stroboframes; The Pro-T and an older one similar to the RL-2000. I don't use The Pro-T often because the flash platform doesn't lock in place and has a tendency to constantly flip. The RL-2000ish is a sturdy unit but it is cumbersome and I used it with a Metz 60-CT1 and GS1 6x7 camera. Even when I was 27, that was a helluva thing to carry all day.
Be wary if the bracket doesn't lock, it can be royal pain and very distracting.
Custom Brackets makes an interesting unit, but it doesn't look as sleek as the RRS one.
The RRS bracket looks very well designed; lightweight and it locks in place. Not to mention the height extension which would allow you to mount a small softbox. I've always recommended Stroboframe but Really Right Stuff have designed what appears to be a great bracket. The only quibble I have is needing their L-bracket to mount it, but it follows the rest of their product line. One day with a loose, floppy bracket would make me forget about the extra cost of the RRS package. Matter of fact, I may not wait.
When you're shooting, you can't always be worrying if your equipment is going to fail.
