JOAR takes place in a (mostly) underground world of caverns and control rooms. It is dominated by an unexplained conflict between roaches and other insects (and spiders) on the one hand, and miliarized ants on the other, though the real goal is to get one roach back to a flower he came across. So, as you can see, flaw #1 is a confused and confusing storyline. What you can make sense of, though, is sometimes funny and even touching.
There is no dialogue; instead, sometimes thought bubbles appear with cartoons of what's going through the character's mind. This could be rather pleasant, except the cartoons are often not very clear, which makes solving the puzzles harder. Flaw #2.
Flaw #3, alas, is the poor quality of many of the puzzles. Some are good, most are very challenging, but many just don't make any sense. When they don't make sense, you can't figure out solutions but most resort to random combinations of objects, and that is not fun or satisfying. To be honest, without a walkthrough I would have given up in annoyance.
Flaw #4 is a little shortcoming in the interface. In most point-and-click games, when you click anywhere in a scene on a hotspot, the character walks over to pick it up or use it. In JOAR, the character just stands there complaining that it is too far away. You have to move it closer and then try again. The scenes are cluttered and the roaches can walk on side walls (but not rear walls!) and ceilings so moving around is not always obvious. A little shortcut for interacting would have been nice.
It isn't a very long game, but probably acceptable for the price (I got it on sale for $5). I wouldn't enthusiastically recommend it, but I did derive some enjoyment from it.