No it’s really sweet, although you do get the occasional ‘schnick’ as it drops into gear. Read up on this and it’s because of the engagement design. But generally buttery smooth and changes under power no problem. One click changes are like a double change on a normal cassette. Like I said, was...
Came specced on my Spectral:On 8.0
Wasn’t sure at first but love it now. The simplicity is great, just 8 gears!
There are loads of reviews on it but here’s one for starters ?
SRAM EX1 e-bike drivetrain review - Mtbr.com