I saw this on shelves, caved and picked it up.

Meh.

The robot mode looks nice from certain angles but has a few things that really annoy me. First, and this is largely down to the torso being a small piece of gray plastic, but the chest looks too large. It's not as bad in person as in pictures but it still detracts from the figure. Feet pre posed at an angle also turns me off. Either make the ankles posable or have them molded straight up and down. The double jointed knees are nice but in honest the lower legs are a bit of a mess all in all. This is exacerbated on my particular sample by the joints in the lower legs being too loose. Every time I try to make him pose it turns into a crap shoot.

The chest not locking in is slightly annoying but its not really that bad, as the joint it all hinges on does a good job keeping it all in place. You still have to hold it in place if you're going to pose the arms.

Pleasantly it manages to avoid many of the previous failings of 'car hood becomes chest' style transformers. The arms and legs are the right length (in the past the arms on similar bots have been stubby). The gun is nice, and it looks nice if you're just going to pose it on your desk. I also really like the head sculpt. It could be a little less frowny but otherwise its very good, and unmistakably Jazz.

The car mode is molded nicely. I feel it would be more 'Jazz' ish without the rally spoiler but I can't really complain, it looks nice either way. The lack of paint on the back third of the vehicle is a major downer. Seriously, it's just not good enough that Hasbro is not bothering to paint in headlights and hubcaps anymore (generally speaking). While the United version rectifies this arguably it's a bit dumb to have to pay over the odds (for a deluxe) to correct something so simple that shouldn't have been an issue in the first place. So yeah, vehicle is molded nicely but the paintwork fails.

Finally, the speakers. I don't like them at all. Personally speaking I think they look dumb, but objectively speaking when I look at them all I can think of is all the other stuff I'd rather them have used the budget for this figure on instead. Better paint apps. Or a shoulder cannon. Or better lower legs. Or a proper locking mechanism for the chest. Or an extra joint in the doors that would let them fold down and behind the roof in robot mode for that G1 cartoon accurate no shoulder doors look. Any of these things would in my mind be an improvement to the figure.

Overall if I had to give it a number 6/10. Robot mode is nice looking but functionally flawed. Car mode desperately needed a lick of paint.

As an aside, I can't remember the last time I bought a Transformer and everything on it was the right tolerance, and nothing was too loose, too tight, or broken in some way (well okay, it was TakaraTOMY's release of AA Highbrow a few months ago, but I can't remember the last time before that).