Works good but it should come with a thinner mesh screen instead of the wider mesh screen.

nice to have an extra to set aside & clean later

great product, new unit makes it work just like new.

I intuited shortly after purchase that an extra cooling piece would definitely be an asset. It allows so much more versatility and cleaning ease as well as allowing one to deal with pesky screens when convenient.

I'm a Mighty happy-or is that happy Mighty-user. The cooling units do the job-and multiples are good! Indeed, the serious user might try my system-use them in pairs, having backups. Alternate units between reloads-they stay cooler, which seems to help keep the body cooler-got to believe this is a plus for longetevity of service. When the pair get dirty (twice as long as 1 unit used alone) replace with another pair and clean the nasty ones when convenient. Use the capsule system and everything gets MUCH better. After using smaller, pen-type vapes, I believe the goo ad debris produced with use to cause much of the physical deterioration of the units. The capsules contain so much of the mess (not to say you won't have to clean stuff-it just minimizes the crud effect). If you can afford the Mighty, it's safe you can get an extra cooling unit. Tip: the Wear-And-Tear accessory kit contains, among a number of useful extras-screens, liguid pads, O-rings, pick tools, cleaning brush, and an extra cooling unit.