Hi Socorro - first off, we want to apologize again for your experience. We know it's a privilege to get to play a small role in anyone's adventure and we are disappointed that we couldn't do our part. I know we had multiple offline conversations about your trip and the issues you encountered and provided you a refund as well as committed to resolving each for future renters. To address a few for your benefit as well as others who may read your review: the bed size is a traditional Full and for guests under 6' it should not require sleeping at an angle, but this is can be the reality for a campervan experience as it does not have the vehicle body width of a traditional RV. As for the space heater, we provide the most commonly used heater on the market for camping (Mr. Heater Portable Buddy - https://www.mrheater.com/portable_buddy_heater.html). You're right that there is a label on it with a warning, which is unfortunately confusing because as you can see on their website it is promoted for use in enclosed spaces, including tents, campers, workshops, etc. You will find this label or one like it on any space heater. As we discussed, it is also equipped with (affirmed on their website as well) an "Oxygen Depletion Sensor (ODS) and accidental tip-over safety shut-off you can be sure that you will enjoy years of comfortable indoor safe heat". For those that want to be extra safe, we recommend just cracking a window or opening the roof fan for additional ventilation. This is what is commonly done with campervans and RVs. As for the roof, though I understand it may be unusual to see for someone who may not be familiar, each roof-mounted fixture is bolted on as well as sealed with silicone and industrial roof sealant tape. The tape is made for these purposes (sealing) and is commonly used in conversions in collaboration with the other elements mentioned. That being said, it's unfortunate that there was a screw that had come loose and caused the panel to be unhinged and we've taken steps to double reinforce its installation, as well as the cabinet door, so neither will be an issue for future guests. Additionally, we tested the fan with a high-pressure hose to demonstrate rain conditions but could not replicate a "leak". There is a sticker/guidance on the fan from the manufacturer indicating it must be fully closed if there is rain to prevent a leak and unfortunately we believe this was not done. Our goal is for the campervan to only be additive to your experience and never want it to be a detractor so for this we sincerely apologize again. We hope the refund and commitment to ensuring these issues don't arise in the future offer you some peace of mind. We wish you the very best!