I discovered that they failed to put a nut on one of the posts for the black tank sensor...not a big deal but it could have caused problems if I hadn't found it. Also I had a difficult time putting water into my fresh water tank. I had to stop several times to "burp" it so I figured the vent tube was blocked or not attached correctly. I crawled under, peeked at the connections on the tank. The fitting for the vent tube was pointing straight up pinching the tube against the floor. I carefully unscrewed the fitting. I had to cut the plastic vent tube to do this and carefully pried the clamp off the fitting. Replaced the fitting and pointed the spout to about the 3 o'clock position, reattached the tube and no more "burping" or being splashed with water as I fill the tank. Other than that, all seems good so far.