I am impressed with the build quality of the slide mechanism. I'm not sure what its rated weight capacity is, but it can hold my 100-pound son without issue. It is made of thick welded steel that has been polished up and chrome plated, it looks great! 
It is actually really easy to install in the cabinet, I put it in my kitchen island. It really is as simple as measuring to make sure it clears the cabinet door, screwing down the slide mechanism, and dropping in the included trash can. DONE!  The trash can is a good size also. Not too big, not too small. It's also well made out of thick yet flexible plastic. 
This is a great addition to my kitchen!