Sixt - Has anyone used DXB Sixt?

Hi,

So I just booked an E-Class at Sixt Dubai, and will be traveling to Oman with it. I am platinum. Does anyone have upgrade experience with the DXB post? Would I go up to an ML or S-Class?

I think I am too late in replying your post, but I want to quote I have had a perfect experience at DXB with Sixt my Mercedes SLK was delivered and collected at my hotel and I was treated as a royal, very nice, felt really welcome in the Emirates. I have rented numereous times with Sixt in many locations serviced by third parties but als many times in German airports and never received an upgrade as a platinum sixt member and amex platinum cardholder.
With Hertz I have always received a 2 class upgrade!! But I prefer the BMW collection at Sixt Germany, so they will still get my business when travelling in Germany. Also Sixt has always treated me very friendly and correct. I very much appreciate the German 'Gründlichkeit'.