First, I don' t have direct comparison with original CE2 and CE1, so I didn't compared either of three modes (CE2, CE1 and CE1 vibrato) with original pedals.
However, all three modes have it's character and work excellent both in mono and stereo. Zero noise, low power consumption and wide range of possible sounds. One of my favorite magical Waza pedals including VB2, DM2 and DC2;-)
Features and sound 4 of 5 because of lack of expression pedal feature/input (would be great to be able to control rate). Otherwise perfect pedal for very competitive price and I would recommend and buy it again if stolen.