Well, I guess that is a matter of opinion. But I play a lot of games. Whether I am rolling to hit, wound, and armor save or some other system, it usually involves the vagaries of dice. So if the first time you play and the dice are unkind, that might leave an unfavorable impression of the game.
I find Force on Forde games are very exciting. My 14 year old son has also played a number of different games, including a lot of 40k. He also finds the current version of Force on Force to be the most exciting game we play. Perhaps part of it is how casualties are handled. You don't just remove models, you check to see if your trooper is dead, seriously wounded, lightly wounded, or just knocked down. And then you have to deal with them. This makes the game much more enganging. There are even campaign rules, so you can if they return to duty or are sent home.
Perhaps, you have to be deeply interested in modern combat and the folks who fight. In my opinion, this game gives a faithful impression that leaves you with a deep respect for those who LIVE it. If you liked the TV show The Unit, or have read personal accounts of people who have fought in Iraq or Afghanistan, you are probably the type of person who will like this game.
But that is only my opinion. Your mileage may vary.