Weak threads on P block
No customer support
FreeFlow is gone
This body is one nice looking body. FreeFlow was known for it's superb honing and excellent milling on their autococker bodies. Combined with their ram and parts, they advertised ball pinching and super low LPR pressures thanks to their arbor honing process. I've got complements on the marker at staging areas as well as on the field. There's really no other body quite like it aside from the Lotus, which is also from FreeFlow. Not to mention it's extremely light as far as autococker bodies go due to the extensive milling and materials used.
One major flaw about these bodies is the back block. The threads on the block is not as strong as I would have hoped. I've spoken to several people, and they have had similar problems with their FreeFlow P-block threads stripping. Since FreeFlow is no longer in business, it's almost impossible to replace this P-block if it should strip out on you. You would need to get it repaired, or somehow find another one. The other alternative would be to halfblock it and not use the P-block at all.
Overall, it's a great autococker body. I got mine for something around $110, which is a great price for the quality, style, and legendary FreeFlow arbor honing. Even with the issue with the P-block, I don't regret building my marker with a FreeFlow Rhythm body.