Super bad service
I have made a car reservation on Sixt Latvia internet site. When I arrived in Daugavpils, I discovered that there is no any Sixt office at the mentionned on the Sixt internert site address. I called Sixt office by phone to confirm my reservation. They have confirmed by phone, but finally at the last minute my reservation was cancelled by Sixt Latvia. So if you really need a car, please be very careful with Sixt in Latvia!!!