I also tried GABA and didnt get any positive effects, just a flushed/warming feeling. The phenibut, once i found my fitting dose between 3-4 grams, is great. It takes about an hour or more to take full effect but once it does i definitely notice a little buzz. But i have to make sure i drink tons of water and eat something or else i will also get that hangover feeling and upset stomach the next morning. If used correctly it can be fun. Some compare phenibut to a valium feeling.