
I won´t do a review of the aleady well-known things that can be found in usual MREs, such as PB, crackers etc. (everyone knows already that PB and crackers are just plain awesome! ^^), but rather concentrate on the FSR constituents. Unfortunately I won´t be able to test the FSR under field conditions, but I´ve eaten some rations in the field, so maybe I can say a thing or two about that.
General overview
This is an image of what Treesuit has sent me:

His self-made FSR and some hot sauces and other MRE stuff I haven´t seen before. The size of the FSR can be compared to a German EPA box and weight is around 1,5 kilos. So it would easily fit into a standard rucksack (mine has a volume of 65 litres and holds a standard load pretty good) and because it´s not packed in a box it´s flexible, too. Another thing is that you could most likely put all of the constituents into a smock or your webbing, so you wouldn´t even need to put that thing into your rucksack.
The FSR. It came in a plastic bag which again hold a reclosable Ziploc-bag which holds the constituents.

The FSR´s constituents:

Accessory packet Crackers
Spoon Peanut Butter
Cinnamon Bun Nut-Raisin Mix
Pocket Sandwich x 2 (BBQ Beef and chicken) First Strike Power Bar x 2
Tuna, Retort Pouch Dessert Bar (FSR version)
Fat Free Mayonnaise Caffeine Gum
Beef/Cheese Snack Sticks x 2 Applesauce, Fortified
Tortillas Cocoa, Hot
Electrolyte Drink Mix Recloseable Bag
MRE Kool Aid Drink mix
Taste test
During the weekend I already tried the Nut-Raisin mix and the coffeine gum. To my surprise the Nut-Raisin mix was really good. Lots of nuts but unfortunately I hate raisins, so I did not eat those. Nevertheless the nuts were more than enough to fill me for the evening. The caffeine gum was nice, too. It comes in a cinamon flavour and wow! Those things are strong! I tried one and it had me "alerted" for 3 hours or so. Unlike energy drinks like Red Bull it was just the right ammount of caffeine so I was not "hyped" and had no caffeine overdose. "Alert" is just the right word and, although I was just gaming my senses were sharp. I wish I had these gums during basic training!
Now to todays dinner:
I ate today the BBQ Beef pocket sandwich, one of the cheese and beef snacks and the cran/raspberry First Strike bar:

The pocket sandwich was alright. It reminded me of a similliar beef snack you can buy in Germany. The "bread" was alright, relatively soft and it did not crumble. The filling was....alright, too, I guess. I expected a bit more beef or sauce, so I was kinda disappointed. On the other hand one sandwich was already quite filling with ~300 to 400 calories.

Next was the "Jack Links All American Beef and Cheese" snack:

It consisted of a strip of beef and cheese which are probably supposed to be eaten together, side by side. Since it´s a civilian product it did not say anything about calories, but I guess it´s a small snack so don´t expect to be full after one. Anyway, the taste is good, the beef is hearty and fine while the cheddar cheese tastes good, too. All in all a nice little snack that fits qell into the "eat on the move"-concept.
As desert I had the cran-raspberry FS bar.

Once I opened the package my first thought was "WHAT is that?". It looked entirely different than what I expected (I expected some sort of trekking bar) and more like vomit than an energy bar. It looked rather disfigured and had a waxy texture. But well, I took my first bite and.....was positively surprised!
The taste was really fruity and the bar had a nice little crunch because of the apple nuggets and crisp corn. Also that thing is packed with vitamins and I can imagine that it´s pretty good as breakfast.
That´s my first part of the review and I must say so far it was quite good. The pocket sandwich was unfortunately a bit dull, but the rest was just fine (especially the FS bar). With just these things I consumed around 500 to 600 calories which is really good for one meal. Another plus is the nearly non-existant preparation time that is typical for FSR rations. You´re hungry and don´t have much time to stay at one spot? Just tear some stuff open and eat while moving. Fortunately I almost always had enough time to prepare my meals during training but I can clearly think of situations where you can´t wait for your cooker to eat a meal, so that concept is atleast for a short period really good. Of course the FSR is no long-tern substitute for standard MREs, especially when it´s cold outside, but it´s only designed for the first 72 hours of a campaign. And when it comes to easy preparation and an enourmous save of weight the FSR is clearly a good thing.
Alright, I hope you enjoyed the first part of my review and as the week continues I´ll add more.