Wow! Talk about responding to an old post!! I have used it by now. I used it for a few months until I lost an irreplaceable piece. I will probably buy another one soon though. What I did like about it was the continuous flow of water, unlike having to squeeze the NeilMed. The Neilmed bottles are pretty agressive whereas the SPE is a little more laid back. I can't say that I personally experienced anything greater using it, but it was nice to have something gently after my sinus surgery! I think the NeilMed bottle would've been too much.
I still got out as much gunk as I did with the Neilmed, but the SPEs are only like $70 bucks on Amazon so I say try it out!