Let me preface this by saying that I am a HERTZ Gold member and Avis Chairman Member. For those of you that don't know, there only about 250 Chairman Members across the globe. Because of that I am usually not open to renting from other rental car companies, but I decided to give SIXT a shot.
I have to say that overall, I am extremely impressed with the selection of cars - yes, they are totally cool, fun and new. Walking into the rental center was like walking into a funky Manhattan night club meets, Apple store - it was a great vibe, relaxed and cool. I will say that it did take them a long time to interact with me at all and I must have stood in line for like 10 minutes before someone said hello - SIXT should learn from Apple and assure that no guest goes without interaction for more than 3-to-5 minutes. I ended up waiting for about 15 minutes before I was called to the rental counter - even though there were only 2 other people being assisted when I arrived.
Once at the counter the SIXT team member tried hard to upsell me and get me to consider additional insurance coverage. This was kind of annoying to say the least.
My feedback to SIXT would be - slow your roll on the upsell - people don't need to be pressured. It's cool to mention something once, but beyond that no need to ask three times for insurance add on or car upgrades.
So, would I recommend you trying out SIXT? Short answer is yes, I would. Despite the lack of interaction, the long wait for the rental shuttle (about 20 minutes), the pressure to upgrade or add insurance, I found SIXT to be vibrant and promising. I think they deserve you giving them a shot and that over time they keep getting better and better. They have some work to do, but if they can fix some of the kinks, this will be my goto car company and with well over 150 rental days a year that is saying something.