Cell tech isn't a bad product but it's very over priced for what it is. Cell tech is nothing more then a flavoured creatine and glucose supplement. You are paying a lot of money for the brand name and all the marketing behind cell tech. You could get the exact same thing for a lot less money by purchasing a generic version.
For a creatine supplement - get either a bulk creatine monohydrate powder or a capsulated creatine product like ancient strength from n2bm.com. If you want to add in a carbohydrate source, get a high molecular weight carbohydrate like waxy maize or vitargo. Both of those options are much better then glucose because they will still raise insulin levels and help shuttle the creatine into muscle cells but they are sugar free, unlike glucose which is pure sugar.