I trust this humidifier system because I've tried it and seen the results for myself.

Great system

This leads me to believe that it is truly a two-way system, but I never really checked the actual humidity of the guitar in the case to see how accurate this system is

This system is worth 5.00 to 7.00

Reviewed online as best system around.

Excellent system!

Love this system

^_^I am very pleased overall and highly recommend the Humidipak system.

After 1 month this system was completely useless

The system is great, but not sure why they want hard pieces to rub on guitars in their cases.

Great humidification system

The one that now ships in the kit has a strange plastic straw-and-channel system for closing two packets into a single case that then is tucked into the guitar hole and then this rigid plastic thing rests on the strings.

The Humidipak is a great system for keeping my guitar in good condition.

All in all, they had a MUCH better system with their first version

This new system is TERRIBLE

Best system for humidity control you can get

This system works very well, and according to the hygrometer my case stays in the low to mid 40's

It is still the best maintenance free system available

Other than that, a wonderful system!

The best low maintenance humidification system on the market

This system is super easy

This is simply the best system for guitar humidification on the market.

Best humidification system next to a room

This system is a really easy, no/little maintenance way to keep your solid wood instruments safe from exposure to fluctuating humidity levels.

The Humidipak System makes it easy and the fact that it lasts for 3 months means you don't have to check it until it's time to replace

Recommend if you want worry free system.

I love this Humidity Control System.

I use these in both my Collings Dread and my Martin Custom 0, because I didn't trust the Oasis system from dripping

I use these in both my Collings Dread and my Martin Custom 0, because I didn't trust the Oasis system from dripping

This system has taken all the guess work and worry out of humidifying my guitars

Recommend if you want worry free system.

This system has taken all the guess work and worry out of humidifying my guitars

The overall system is simply GREAT and so easy to use

I highly recommend this system to anyone.

Best humidification system that I've used.

This would be an ideal humidifying system -- IF only the packets lasted longer

D'Addario's new system makes guitar humidification a painless, worry-free experience.

a good 'system' for regulating humidity inside the case

The original system, in my opinion, was far superior.

This is a good system for someone like me, who was constantly pulling dry sponges out of my guitar humidifier

The best guitar humidification system on the market

The system works, but it is quite pricey to keep up with.

Sometimes have to swap out for a backup set the last month or two but still, the best system I've used to date.

This system seems to work very well in maintaining a relative humidity in both moist and dry environments.

I just do not like this newest pouch system.

For five weeks of winter, the system has worked well.

Otherwise this system would be too expensive and I would not rate it five stars.

I read the reviews others had written, and thought I could play the system as well.

I've had guitars crack from being too dry, great, clever system.

Excellent, no brainier system for keeping your prize guitars properly humidified

Great little system for your precious baby!

Love the way this system keeps my acoustics very happy, even in this hot and dry climate!

I've found the clay-based little plastic cannisters to be a perfectly adequate humidification system and more convenient.

I recommend this system highly.

I thought I was getting a better system by paying two to three times more than the cheaper ones

Martin does not recommend any system that contains chemicals, additives, etc.

Best system I've tried

I think they're probably a great system for a guitar that you don't play often, but not for a guitar that sees regular use.

A music store recommended this system for my guitar.

These are the best humidification systems for acoustic guitars.

I was looking forward to an alternative to changing the small sponge in my plastic Planet Waves Planet Waves Humidifier, so I bought the more expensive Humidipak Automatic Control System.

It is not nearly as good as the older system.

But so far, this system seems to work great

The best humidification system available for your acoustic guitars.

A very good system for maintaining the correct humidity level on your guitar.

The Humidipak system is incredibly convenient

THis system works great