I have had a.......
Zoom B9.1 - bought because it was being cleared out for £99 by a shop. Loads of fiddling fun but ultimately too bloody big, heavy and complex for what i wanted it for (a bit of compression,modulation and home practice).
Zoom B1on - fantastic value and brill for home practice. Ok on stage if you dont need too many different patches. Plastic but feels pretty sturdy. Hard to see the display on stage.
Zoom MS60B - awesome little box that lives on my pedalboard and provides everything i need in my covers band. The compressors and modulations are great, i dont use the distortions and the way you can set it up to add patches in to different songs is good. Easy to see the display on stage.
You can combine 4 effects for each patch. You can just use a single effect/patch and switch it in using the footswitch or you can advance through patches A, B, C etc by a single press on the switch. I set A up as bypassed, B as a chorus, C as bypass, D as SVT sim, E as bypass, F as Dbx compressor and just press once as i go thru the set when i come to a song that needs an effect.
Iist - you get the idea. Recommended bit of kit and small too. You can usually pick them up for about 50 quid from this site.