I took a chance and purchased the EBS Phaser. I've only used it on two gigs so far but am very pleased with it. The 3 way switch high, low and off adjust the frequency of the phaser. I just kept it in the off position and it didn't change the tone of my bass. In the high I lost to much bottom. Another feature I like is you can adjust the output level by taking off the back plate. I messed with it a bit and adjusted it so the effect volume is even with the volume when it is off. It was a little hotter at first when it was engaged. On the EBS website they have some demo's and I must say it sounds exactly like the demo's. I compared it with an Analogman mini chorus pedal and I was surprised they pretty much sound the same effect wise. But the EBS just sounded warmer and didn't loose as much bottom. I think it was a good buy and so far I'm pretty happy with it.I have almost pulled the trigger several times!! If you do order one, please be sure to post your thoughts!