My sister-in-law bought a few of these as part of a bag of goodies she gave us, so I am forcing myself to somewhat gingerly try this flavour - Vegetable Salad.
Now, in Japanese, "umai" means something is very good, so when a food manufacturer uses it of course they are big-noting their products to mean very tasty.
The manufacturer Yaokin, has a very simple website, and they have a product catalogue you can download.
The snack in question is a long puffy savoury tube, abit like a cheezel but longer. Like one mega cheezel, I guess. The name of the flavour - vegetable salad - is a bit confusing to me really. It's either a vegetable, or a salad, unless it's a salad of vegetables...I guess?
Biting down into the tube, it has the same texture as a cheezel, puffy, but easy to bite through. There is some spice in there. It's not too hot, just enough to give flavour. There is alot of flavour sprinkled on the outside, it comes off on my hands.
In all, it's not bad, but it's not umai either. I can't say that I'm really a fan. Though these seem to be geared more towards the younger set, and at 10 or 15 yen each you can't really expect much more than that.
You can check out other reviews of Umai at Japanese Snack Reviews.