Nope, not a daily driver. It has got to be in the core or somewhere. I can't find a leak in the engine bay so it must be in the core. Took it on its really maiden voyage the other day on a decently long drive. 30 miles and got on it on the highway and the windows instantly fogged up and I smelt antifreeze. I don't see any antifreeze in the passenger side floorboard or even the drivers side for that since that is really where the core is. I am not going to spend 8+ hours tearing apart a dash where everything works just fine. Seems like I would be opening up Pandora's box if I did. I also don't have a garage to do it in. I am not afraid to do it, just don't have the time and don't really care if I don't have heat. I can put in a electric heater if needed. Did this in my old jeeps and it did just fine. After car warms up I can simply open up vents and get engine heat. I don't see a huge problem.