I wrote a piece about the ESL 40 In an other thread to day, hope it is ok that I paste it here.
Update on my venture into ESL40
I received the ESL40 Yesterday, nice and discrete. Perfect!
It comes with instructions that are easy to follow and detailed, I had no problem comprehending Joe to set up the system and put on the device.
Quality seems very good, thick silicone material and a over all sturdy impression.
At first the cup seems to be difficult to out on, but I read and followed the instructions and then the process went smooth.
The trick is to roll down the walls of the cup until it resembles a condom you just unpacked. It is the easiest appliance of an ADS I have tried yet.
I was a bit surprised that it only covers the penis head, but so far I have not felt slippage. I think it will hold up.
The profile when worn under slim fit chinos is quite discrete. There is a bulge, but it is very small, and it is with out comparison the most discrete ADS I have yet seen.
Finally it is very comfortable. I was extremely please with my no name 20$ vac ADS, but this is a lot more comfortable!
I could wish for a more power full stretch, but I guess that is something I can experiment on until I find the optimum or I can replace the harness with something else. To this I might note, I believe that the cup has some limits regarding how much pull the vacuum In the cup can withstand, but I have not yet tested the limits and do not know for certain.
The above is my immediate impression, I have yet to test it over a longer period of 6 hours + a day for several months.