If you think you will be getting into this hobby and you are serious about it, I would skip the middle size humis and go straight to a 300 or larger.
You'd be surprised how quickly that 150 humi fills up. There are a lot of great deals out there.
I used to have this one and I loved it Cheap Humidors The Ravello High Gloss Cigar Humidor
It became to small though, so I sold it and built a wineador, and soon after a coolidor