Very good for medical use! You can take small puffs and it works well for micro dosing. On the other hand you can take longer fuller puffs and get much stronger doses. It holds enough material for about 6 smaller puffs or 4 larger puffs. The batteries get low after about 8-10 larger hits(max). It's really low profile and good for things like sitting out on the porch or it would be nice on a hike or walking the dogs around the park. The puffs seem fairly easy on the lungs and taste is superb! I reccomend this for older patients who want a quick and easy way to medicate, that are also looking for a simple setup.