I was very pleased when i started using the gel rest, and will continue to use it as my preferred shoulder rest as I often must play in a shirt with high collar which makes the violin too instable on my shoulder/collar bone (i don't use a chin rest or anything, i just rest the violin on my collar bone usually)
Anyways it works well and is the probably the best product for the purpose, so i will continue to use it.
However i have a few issues with it which is why i give it only 3 stars. I feel the grip could be better, the red sponges actually grip better than this item, so that was a bit of a disappointment as i expected it to be a bit more grippy.
Further on the package it says you should removed the micro-rest after playing but on the website and everywhere it says you don't have to remove it, I do remove it after every session as i don't trust the adhesive enough to leave it on the violin for a longer period, I once forget to remove it after practicing and the next morning I felt like it was stuck a bit too well on the varnish, even though it did not leave a mark when i removed it.
And now since i am removing every time the packaging it came with is not very hand for unpacking and repacking every time (however on the package it states to put it back in the package after use), as well you must put the contact paper back on to keep the maximum stickyness, not very handy, they could have easily put it in a container wit a smooth bottom that acts like contact paper.
Furthermore the stickiness gets a lot worse the more you remove it and put it back, however with the wipe of a damp cloth it gets better, but you have to make sure it is dry before putting it back on the violin which is awkward.
I have had it fall of the violin when I had the instrument angled on my collar bone but the gelrest was not touching my shoulder. So something to wacht out for if you are performing somewhere important, make sure it is clean and sticky.