I used Arion stuff for a long time, before I could buy the expensive stuff, overall you get a great product for the money. I had the Metal Master, Chorus, Overdrive, Flanger, Phaser, Octave, tuner and EQ, the Boss EQ was better IMO, but I liked the stage tuner, easily visible from 6'5" above it.

I think overall you get allot for the money, and the flanger pedal was VERY versatile, doubling as a chorus if you needed it to.
Good find, you'll get some good use out of em !
Bamm