This is simply a perfect product for someone who, for whatever reason, don't like a traditional bottleneck on their finger.
It took a couple of minutes to get used to having a "heavy ring" on your finger, another couple of minutes to get the hang of it, and a few minutes more to adjust the fit of the actual ring. In just 10 minutes I was sliding just as bad as before, but much more comfortably.
The Jetslide inevitably will improve my horrible sliding skills as finally I found a product that I will not only have in my gear bag but also actually use as it's not in the way for my normal playing while wearing it.
Now that I know I won't be throwing it on the floor (like I do with bottlenecks) I dare to also buy the glass model. Great stuff!