I believe it's superior to a neti pot. The saline solution is introduced with enough pressure and flow to break up and irrigate out mild stopages, allergens, dirt, and debris better than the neti pot, which only uses the slight gravity pressure of three or four inches of water.
As in so many things, gentleness is called for lest one injure the sinues. It is critical not to use too much salt and not to make the water too warm. Too hot or too salty water can actually damage or kill the ciliated cells lining the nasal passages.
Unlike the Nasoline instructions, I fill a 12 oz. glass with cool bottled water (or warm from the tap if in a hotel room...skip additional heating) and add 1/2 tsp. of non-iodized salt. Then, I heat the cool solution 30 to 40 seconds in the microwave, depending on starting water temperature and power of the microwave. Then stir and use.
Googling "60 cc syringes" turned up many sources with tapered tips:
http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=5763&cm_mmc=Shopping%20Por tal-_-NexTag-_-Birds-_-Hand%20Feeding%20Tip%20(60%20cc)&ref=3665&subref=A A&GCID=C12188x007
http://www.windycityparrot.com/Merch...de=30401451020
http://www.healthproductsforyou.us/p....aspx?PID=5313
http://www.amazon.com/dp/B000N3M1GK/...K&linkCode=asn
etc., etc. The soft tip on the Nasaline comes off for easy transfer to replacement syringes, which is a money saver after you have the Nasaline. I'll bet a search through the baby section of drug stores would turn up other things that could be used as tips.
To me, it's great fun to come up with creative and superior money saving solutions. Thanks for the tip, Cathie, on buying 60cc syringes.