I've found this small 6-channel (4-channelstrip) tabletop mixer very easy to use and great to have for recording 1 or 2 sources like guitar or song, I would have like another aux send to be able to send two microphones to different recording tracks.
I use it heavily with a condenser mic for podcasting and general computer sound management and have not had any issues with noise or humming either in the channelstrips or the output.
The pots are noiseless but feel a bit plasticy, don't expect anything else at this price point. Same thing with PFL, would have been nice to be able to pre listen to separate channels without sending the signal through the main mix.
The only thing I really miss is a midrange control for channel 3/4 and 5/6.