Had a good experience with ELS. I inquired about a specific car several months in advance. Vehicle delivery was smooth, and they accommodated some last-minute adjustments. I'd rent from them again.
The only minor negative feedback I have is that, in my case, the listed prices on the website were lower than what I was actually quoted due to the season I was renting in being "Peak Season." I would rather have this disclosed upfront. Additionally, the spec of the car was different from the one shown in the pictures (exterior color, interior, and wheels). Lastly, the vehicle safety deposit was more than double the weekly rental rate, which is high compared to other exotic car rental places I've rented from in the past (Although this seems to be the norm with European car rentals vs. US rentals.)
Side note: Be careful renting a large SUV like I did in France and other places in Europe. I couldn't fit mine into any of the public garages near me!