Its does, but a dph/dxm combo trip can be far from enjoyable. It is less crappy feeling then a trip on DPH alone, though, but not exactly what I'd call enjoyable.
When I tried it I dosed 350mg of dxm and 350mg of DPH, it completely ruined the dxm euphoria, and the whole trip I just was trying to use my computer that was on sleep mode, kept hallucinating using it, it doing crazy things, then me snapping out of it and being too trashed to do anything but stare at it when I wasn't hallucinating. This kept happening over and over, and that was basically my whole trip. I basically was just waiting for it to be over because thats all I could do.