Very well made.
My husband is an OTR driver and wanted to use the same relaxing oil blend in his truck as we do at home.  Auto shutoff was a must, and one with water was preferred vs those that just heat a felt pad.  He places this on the top bunk (plug and cup holder up there) and when it's low interment it's not overpowering, just &#34;there&#34;.  It fits  nicely into a standard cup holder and even it it tops I doubt much if any would spill out.  The top is very secure and the whole thing feels well put together.
Rating: 5 stars