If you are a person who highly values gameplay, then MGSV will likely be among your top games for the year. If your adoration of the Metal Gear series begins with a love for the crazy plot, then you will likely be disappointed.
Or simply if you like games with a proper plot, since MGSV has no plot at all with no ending.
It's not that you NEED to adore MGS franchise in order to ask for a proper plot, a thing missing here, since the game is just a collection of episode and some of them won't be concluded because Konami had the amazing idea to cut off those sections in order to release the game.
Even excluding this, the game is very repetitive: you visit the same outpost 500 times, a lot of main missions are just glorified filler and they do not actually bring usefull info about the plot (exactly like extra ops in GZ).
Is the game funny? Yes it is. Stealth side, is the best product you can buy at the moment.
But the game has also several issues, and it suffers from being released too early while it's clear Kojima want to do something else with V, but Konami stopped the project because hey, they need to do money after all and MGSV sucked a lot of them for many years, so V is what remains now.
I can justify the repetition in a product like Peace Walker, with very short missions and aimed for a different audience (the one using portable devices, since it's clear PW was designed around this feature, short session but a lot of them). Still, Peace Walker was less repetitive than TPP because there was a good variation, even dispatch system was much, much better, since you can decide what vehicles send on battle, while on TPP even if you own 100 tanks, you can only send the amount the game decides for you, and the failure rate is way too high even with 95% of success.Those are just gimmicks in order to artificially increase the game's lenght.