I'm starting to prefer Acrylic after my experiences with the dry air in my apartment causing wooden humis to go nuts (I have to charge my humidifers every four days! Once I get the coin for it, I'm getting a room humidifier to end this madness...or is it to end this Sparta...I don't know anymore...).
The thing with acrylic, if it's airtight, you need to run a humidifer that's about 30% smaller than the capacity of the humi. Running too large a humidifier in a jar humidor taught me that...even a 25 cigar credo was getting me up to 80%RH with glycol....but a 10-15 cigar humi-care pillow got me at a perfect 70-71%.
So give it a go, but if the humidity is high, try a smaller humidifier.