When I was first getting into gear and pedals I was a delay junkie. I just left it on all the time, and people got used to everything always being really "wah wah wah echo echo echo" from me. What I slowly learned the hard way is that the repeats can often get in the way and clog the tone, especially with distortion. So I continued using delay, but started to turn the mix down to something more subtle. At some point further, it almost felt pointless to be using a delay pedal only to turn the mix almost all the way down. But I still like having "ambiance" to my tone. So I just use a reverb trail instead these days. It gives me the ambiance I want without unnecessary repeats. If what you are going for is explicitly an ambient vibe though, delay is a very nice thing to have, and it doesnt hurt to pull out a super saturated delay tone for such purposes. It's just that, for general purposes in a variety of musical situations, it's a bad idea to impose your "ambient saturated delay" tone on literally everything. An Eric Johnson style tone swimming in delay is not necessarily going to work for your funk or straight ahead jazz gig.