Works well, beats having to spend calories on coffees or energy drinks

Works as intended, good quality caffeine on the cheap providing a much-needed boost for people who don't want energy drinks, pre-workouts or coffee.
Goes Well With:
L-Theanine, L-arginine, Citrulline and really any pre-workout mix.

Personally I take 2 of these tables 20 minutes before training and I can really feel a difference. I don’t take it unless I feel drowsy and tired. The recommended amount on the box is one a day, personal I couldn’t feel a difference therefore I started taking 2. The more regularly these are taking the effects become a placebo therefore, I recommend only using when necessary to get the full effect  
Goes Well With:
Eat before and take with water 

I don’t have a very high caffeine tolerance, but found one tablet gives me a boost of energy, keeps me focused all day long, and suppresses my appetite a lot more than coffee does! However, if taken on an empty stomach it does give you a jittery/nauseous feeling, & there is definitely no buzz nor did I find much of an effect on my workout so I would recommend only using these for helping with focus rather than as a pre workout! 

It’s okay and gives you abit of a boost but I think the contents of caffeine could be higher

It keeps me focus about 8 / 10 hours, but if you take one of this pills don't drink any coffee, energy drinks or pre workout because you will go directly to the moon!
Goes Well With:
Alpha Men and The Whey (protein)

Thought I’d try these over the pre workout as it’s easier to take. However didn’t give me the buzz that pre workout did. Probably best to use to help you get through work or studying

Purchased this product as I wanted to try to get a caffeine energy boost but wanted to do something, without drinking coffee.  Pleased with the affect this product has given me and feel much more alert, focused and energetic. Simple boost when I need it without having to always drink a coffee...highly recommended.

It is pure caffeine and it works well as pre work out. I also use it when I need a boost on my morning energy.
Goes Well With:
As they are pills do not need to mix it withe anything else

I was a bit sceptical about these at first but honest to god, I swear by them.. I take one tablet approx 45 minutes to one hour before my workout.. I have so much energy and I’m burning nearly twice as many calories because I can push past the physical and mental block I used to have.. Amazing product.. 
Goes Well With:
Water A-Z Multivitamin