I find them good. Have tried SIS ones and also Multipower - both are good. They taste like strong squash or cordial and are just a very thin syrup. They are not very thick so are very easy to swallow - only a little more viscous than a soft drink really. They deliver a hit of sugar which really works for about 45 minutes to one hour at the end of a ride when you're flagging a bit. I wouldn't rely on them throughout a ride, but just have one, about 45 minutes to one hour from the end of a long, or hilly ride. The ones with caffiene in them are especially good.