Generally I find that there are positives and negatives for both stomp boxes and all in one units. Stomp boxes are great for me, as I don't use too many effects, a bit of delay, some wah, distortion, maybe some flanger or phaser if I am feeling fine. With stomp boxes, they are easily programmable immediately, for instance my Bos DD-5, on which I can tap the tempo of the tune in and I automatically have the right delay time, I find that much easier than playing with fiddly prgram buttons. However, Stomp boxes do create noise, and they are so much more expensive if you use a lot of different effects. Effects untis probably create an overall more cohesive tone too, where all the effects blend a little better. It comes down to preferences, though I do tend to agree that using all-in-one untis ttends to produce similar sounding tones to everyone else. However.... that was my two cents.