At first everything was good

As a guest bed, the Luma is a good solution. Thanks to the integrated pump inflated quickly, hardly loses air and morning, the air thanks to the inverse of the pump blown off just as quickly and the mattress are then stored in the accompanying case.
Until now three different guests who stayed at the Luma, and all were satisfied and have slept well on the mat.

Addendum (six months later):
After repeated off and back pack (about 6x) lost the air mattress after a new inflate suddenly sooo much air that it was impossible for one night through sleep on. I suspect that somewhere, a leak is caused by the repeated folding of the mattress to always the same places to grab the Luma into his pocket. However, it is not going to get out where the mat loses air to mend it or something. Now she is no longer to use so after about 6 times will use.

For this reason I had the 5 star revoked and to reduce them to two stars.

And because of warranty: Have the seller (dsversand) requested here on Amazon as it looks with warranty, who is in charge, so sellers or producers. But the seller does not respond here on the news, and the manufacturer is in China :-(