To me it depends on personal taste.
If you want to sound the the Velvet Underground or anything Lou Reed, don’t use a compressor.
If you want to sound like Com Truise compress the hell out of it.
Sometimes I don’t even use them.
The SSL clone I use is good for bringing drums together, especially if they are real drums through mics. I would suggest trying it on your drum tracks. The LED meter seem more simple to me and easier to find and build
. Having built two I felt the need to use one recently. Otherwise you don’t really need compressors.