This is meant for latex tubes, not butyl rubber ones, which is probably why people are having bad experiences. Use it in road or CX tubulars and use the amount recommended and it's a fantastic product. Have had multiple tubular tires wear out before puncturing out with some good nicks and slices in them that cafelatex has kept from blowing out. Follow the instructions and use it on the right equipment and you should be good as gold.
Super sturdy, light weight and easy to use. The tool tray is the perfect addition. I must use this every day on all different types of bikes, road, DH, CX and it's easily adjusted to fit any shape or material tubing. Wouldn't be without it.
Works fantastically well for its designed/recomended use - obviously with SP pedals. Also great just to have around for various other uses. I've used this in hubs, headsets, bottom brackets and all manner of other grease requiring places on the bike and other household items where an easy grease application is required.