I use lerneje all the time. If I'm talking about a room, I'd probably say en instead of -e because you are in the room.

Good to know it makes sense. I don't particularly have my heart set on using things like 'lerneje', however I do enjoy having the option. It certainly provides a logical, easy to understand (assuming it's used correctly) solution if I ever find myself lacking a certain location word and I want to keep a conversation going.