What I like about the fireplace is that on a cold morning it takes the nip out of the air pretty quick without using your propane. It has a nice ambiance about it also. We camp every year for 1-2 weeks in Colorado. We usually sleep with the windows open as we love the air up there. When we wake up in the morning and step out of the covers, it is pretty nippy. Turn on the fireplace, get a cup of coffee and enjoy. Since our mountain trips are usually in either May or September, we rarely close he windows. The days are nice and moderate and trailer stays a decent temp.
Some have mentioned that the fireplace takes up too much storage space. I guess it depends on how much you use your trailer. If you full-time...maybe it does. If you are a vacationer and weekender like us...we have cabinets in our 5er that have never had anything put in them. Otherwise, we have lots and lots of extra storage space. Actually, I kind of wish that the overhead cabinets above the theater seating and above couch didn't exist and larger windows where in their place. The reason is we've had our 5er for over a year and have yet to find anything we needed to put there. We have two long cabinets on either side of TV and have only used one of them for extra pantry space on one trip. Otherwise they both stay empty as well because we have plenty of kitchen cabinets for just the two of us and don't take a lot of stuff with us on any trip. One of the deciding factors for us on our 5er was all the extra storage. Everyone always told me you can't get enough...well we have plenty and I am afraid if we filled it all up, we'd be WAY overweight. It would be nice to have though if we lived in it or traveled more often with guest staying with us.