First impressions is that is sounds pretty good but is picky about placement. All the other fuzzes I use sound best after my overdrive (mxr gtod) but the havalina sounds thin and way bright in this position. Tried it with fuzz first and sounds better. I'll probably send back as I don't want to muck up my existing setup. My od is always on so I need my fuzz to work downstream. Not sure if it's a buffer issue or what but haven't had this problem before. The mid-rich mxr sounds great feeding my fuzzface and big muff.