Pros: This was originally bought as a gift to my boyfriend, and he was very happy with it. It's easy to clip on, protects against scratching and bumps, and makes your NDSL look great.
None of our friends have it, and everyone was pleasantly surprised and thought it looked cool when they first saw it.
The designs on the top cover part are also really good, he's had it for little under a year and they are still intact, they haven't been "scratched out" or anything.

Cons: None really, except that when he got it, he wished the bottom and top parts were connected, he felt it would be more effective in preventing damage from falls.
Have to say though, that he dropped his NDSL quite a few times and nothing ever happened.

Other Thoughts:

Bottomline: Get it, you certainly won't regret it.

Pros: Nice Pokemon design.
Shiny black case looks nice.
Extra protection for the DS Lite.
Fairly easy to fit.
Not very thick so doesn't make DS Lite too large for carrying cases and such.

Cons: Not good as impact protection.
Cannot use some accessories while this is on (such as some of the Guitar Hero controllers).

Other Thoughts: This has a very nice design and is better than stickers on the DS Lite as it will not leave any marks if you decide to remove them. Also provides protection from scratches to the original DS Lite case. However this would provide little protection from shock or impact damage due to dropping the DS Lite.

Bottomline: If you like Pokemon, get it, it looks nice and can be left on virtually permanently, if you need padding to protect the DS Lite from drops, get a padded carry case as well, but still get this to protect from scratches and to look nice.

Pros: I bought this for my little brother and he loves Pokemon. The Nintendo DS is covered and protected because he tends to drop it once in a while. The plastic used for this shell is hard and sturdy which guarantees that the NDS will be safe. Assembly is easy as well because you just have to clip it on.

Cons: One of the major problems with this is when you are trying to hit the L or R button the plastic gets in the way. Not a big deal for games that require only the touch screen or don't use those buttons that much but still I found that to be the biggest problem. Also the NDS feels a bit more heavier in your hands but that is not a big problem.

Other Thoughts:

Bottomline: For the price you can't argue. Walmart or other retail stores charge three times more than the price you will be spending here so it's a wise investment to protect your Nintendo DS

Pros: I like the fact of having my DS protected, And this case does offer some protection to the DS as far as scratching and minor bumps.

Cons: This case is a two part case, one part attaches to the bottom of the DS the other to the top of the DS. The problem I have with this case is if you drop it on the floor standing up the casing will just pop off so if it bounces the the second and third possible hit will still damage your DS, also I was uncomfortable wit the way it clips on the DS, I was afraid it would break the power switch or volume switch.

Other Thoughts: If the could over com my fears in the Cons section the I might be ok with this case, personally I prefer nerf armor now it can totally absorb a large drop and protect you DS.

Bottomline: Not bad, but not on purchase list any longer.