I have purchased 2 of these to give away as a gift. It's great for people that are just starting out and dabbling into the whole realm of protein. Even if you're someone that already has been using protein products it's good to have a good variety pack. I have purchased 3 of the 4 pro range proteins individually and so far all of them are great. Although, you really have to enjoy coffee to appreciate the strong taste of the coffee boost.
Goes Well With:
Water

excellent products, eeas and amino acids definitely help with recovery, pre work out gives a good kick. for me the taste is a bit too sweet for all these products. ideally i wish we had unflavored versions.

The sample box is nice. The 4 different powders all have a lot of serving in them. Some don't mix that well with the instructed amount of water, but a little bit more water makes it mix better. Beware of the size of the scooper for the pre-workout. You only need 1 scoop, and not 3 like it says in the instructions. Overall, I like these powders and they work pretty well.
Goes Well With:
Water.

Got the Item as an add-on. Pretty stoked to try a variety of Pro Items. Flavors are great. Only one issue is that I’m pretty sure the scoop for the Pre Workout is wrong. The Serving Size 3 scoops (15g) but the included scooper measures 18cc (so if 1 cc = 1g, then 3 scoops = 54g!) Be on the lookout since preworkout can give you jitters if you take too much. Glad I opened the other samples first since those have much smaller scoops. 

I was lucky enough to get this pro sample box and am very happy. The shaker is super nice, stainless steel with a variety of samples to choose from. I will be purchasing two of the samples in larger volume now that i had the chance to taste these. I would recommend picking this up!

Let me start by saying I have used many (at least 10) different pre-workout powders with caffeine and I have been fine. However, using the pre-workout sample from this box (I followed the label - Serving Size 3 Scoops) and it did not mix well at all with 12oz of water. It was extremely sweet and chalky and there was still powder left at the bottom after a full minute of shaking (this is way more time than I usually spend). I was absolutely wired during my workout (kinda nice actually) but shortly afterwards I had a very runny bowel movement and the bowl was BLUE (flavor was blue raspberry). That's when I knew the serving size is definitely incorrect, DO NOT TAKE 3 SCOOPS! I had 3 more bowel movements the same day, all runny and blue. Suffice it to say I am miserable, and this has never happened even with other preworkouts that have more caffeine (250+ mg) per serving.
Goes Well With:
ONE SCOOP, not THREE

A perfect way to get started with My-Protein to get to know their products. All of which are great!

This is a great option when bought on sale to taste different products plus a shaker. Will definitely be buying the coffee boost separately. 
Goes Well With:
Almond milk or water 

1st review here. I love Myprotein products. Great stuff, variety, and deals. I was dssapointed (at myself too) for the pre workout directions. It says 3 scoops per serving for a total of 10 servings. First time I tried it it seemed like it was too much, but I was dumb to disregard it. Right after taking it I felt weak, and my stomach reminded me in the next few hrs of how much I took. The directions pretty much tripled what it should be, so be careful.

Since I tried my protein products I loved, the best flavor and the best quality for all product, I used and recommend for everyone.