For both subtle and extreme settings, the Chicklet Reverb is an excellent unit, particularly for the price.
All Malekko 4 Models follow
The pedal suits my style down to the ground, and fits in rather well as a contrast to my, at times, bright sounding rig.
The 616 LoFi is very impressive delay with the nice warm gritty decaded repeats.
The Malekko Vibrato (Omicron Series) is an incredibly simple, yet amazing, pedal cloaked in a tiny package.