If you're chiefly making furniture from MDF or other sheet goods, then Bessey Revo sash cramps are probably what you need.
But if you're making solid wood furniture, or you're making joinery products, then there's a lot to be said for traditional Record style sash cramps. And that's in terms of practical application rather than the fact that they're less than half the price of comparable Besseys.
I switched over from Record to Bessey about ten years ago, I must now have twenty or thirty Bessey Revo sash cramps and scores of their F cramps. Smashing products they are too.
But bit by bit I'm finding myself drifting back to using Record sash cramps. And on those really critical glue-ups, where two or three hundred hours of work will either all come together or all go pear shaped in the space of 30 minutes, then I'll be much more likely to choose Record.
I'm not 100% sure why that is, especially as there's obviously a huge amount of overlap in the practical application of both products. But on balance I think Record sash cramps force you into a slower and more deliberate way of working, using many more cauls, cramp blocks, and bearers. So I spend much longer preparing for the glue-up, but then I feel more confident once the process is underway and more likely to make those little adjustments that deliver that extra bit of squareness or those slightly tighter joints and glue lines.
Just my 2p's worth.