I have never owed a Xantrex but I did install a Magnum Energy MS 2000 inverter/charger about three years ago. The unit has been a great unit. I later installed the Magnum Battery Monitor
unit. When installing the inverter
I called their support group and received great support. About two months ago, I finally got around to trying to understand some of the data the battery monitor
unit was providing. After scratching my head
for a day or so, having a couple of electrical
technical type friends looking at the data, I finally call tech support. After working with me on the phone
for a few minutes it was decided that the monitor should be shipped back to the factory for testing. This unit was past the warranty period. Within two weeks I received a new monitor which I installed this weekend and it worked perfectly. Based on my experience, I would recommend this company. The story I heard was that Magnum was formed by ex-employees of Xantrex who became disillusioned with he quality of Xantrex products.