Rating: - It works sorta
I really don't have any basis for comparison as I am new to the guitar and thus new to guitar humidifiers. This thing did raise the humidity in my case but it did not get it up to the "safe zone." So, either I live in a really dry apartment or I need to buy a few of these to get it humid enough. If it takes more than one of these things to work, that could get expensive real quick...
Rating: - Like the super sized
I've owned two other regular Dampits and this one is huge!
Best on the market if you ask me. My guitars are thankful.
Why buy one when you can have two? You won't be sorry. Just make sure to squeeze all water out.
Rating: - Dampit is good, damit!
The dampit guitar humidifiers are great. They are simple and effective. I don't bother with the provided plastic "hole cover" - I just place the humidifier inside the guitar while it's in it's case - that way it humidifies the whole instrument. A word of caution, as is clearly stated in the instructions, make sure to wring out and shake off excess water to avoid staining the unfinished wood inside the guitar. I've never had this problem, but I've read from other folks who mustn't have followed the instructions - and have had a problem. There are other, more expensive, more elaborate humidifying systems out there - but in my opinion, this one out-performs them and is much simpler to use! It's a great product.
Rating: - Moist and unclear
That dampit does a good job as a humidifier but the strip that tells you when to (or not to) use dampit is hard to read. There is a colored strip, red on end and blue on the other, next to a scale saying, Use dampit, don't use dampit and the indicator is the gray spot on the strip between blue and red. Either the gray spot takes up more than one defined square or my dampit indicator doesn't work. The instructions explaining this are short and I found no help online.