The only disadvantages are for me the fact that one the one hand, the lubricant normally can not use spontaneous, because you have to touch it only. The manufacturer recommends a waiting period of 1-2 hours is specified. In this case, just a little "go west" spontaneity. Also, the amount produced in a process is very generous (about 500 ml). Since one should consume up mixed lubricant within 14 days, I can well imagine that you have to dispose of a larger amount frequently. But I think that here can seem a bit counter, by example only touches half the amount.
Conclusion: In general, I would recommend the Lube very, it feels really good when used at the sliding effect lasts a long time ago and even after use is all washable very quickly and without residues. The long wait and the generous amount produced are the only - negligible in my opinion - downer at X Lube.