I can't speak for performance over a long period of time. I have installed them on four turnouts and they are doing fine. With some tricks, I found them fairly easy to install.
Before slipping the three prong piece into the hole, I soldered about 12" of wire to each of the prongs at the work bench, which was easy. Then put the wires through the hole followed by the prongs. I think to solder the wire on after installing the prongs, is very difficult.
I then took the three wires under the table, and after crimping on spade lugs, took the wires to a lug mount on my benchwork. screwing them to the lug mount. In this way I can reverse the polarity later easily, if needed. From the other side of the lugs, I ran wires to the frog and power feeds. Also sent wires with resistors to the control panel for LED lights.
I found putting the spring and then the cover into the top, was difficult until I used my magnifying head band and using tweezers. Then it was fairly easy, and works fine.
Whatever you use, have fun modeling! Hal