I'll begin this by stating the following:
Prior to Battleborn, I had, in my long gaming career, never bothered with a MOBA or similarly styled game.
Going in, wasn't sure what to expect: the game's reviews were good, but let's face it- MOBAs aren't known for the most accepting of communities.
So, why did I buy?
Because of two things:
1) the price had dropped considerably, thanks to it competing, (unfairly) with Overwatch, released almost on top of each other. Between the price drop, a sale price, my Gamers Club discount, and Reward Zone certificates, it came to a total of $7 for me that day. Not a huge loss if I discovered I disliked the MOBA genre.
2) Unlike Overwatch, and most MOBAs, Battleborn came with a single player campaign. Had the multiplayer been a bad experience, I'd hoped to get enough play out of the campaign to cover the cost.
I can say the following; Battleborn is a victim of the Overwatch juggernaut. While they're two completely different game styles, the bulk of the public sees them both as first person competitive shooters featuring over the top characters. It's a shame, too, as I hope Battleborn doesn't end up the way of Evolve, not because of lack of interest, but due to mediocre marketing, public misunderstanding, and, as a result, not enough players.
The fact is, at current sale prices, Battleborn is worth every penny, even if multiplayer is something you rarely indulge in. I hesitate to say to buy it only for single player, but even if you never played a single multiplayer match, if you have a "collector mindset," you probably would get your money's worth.
The campaign is actually very well done, long enough, and filled with the laugh out loud moments that Gearbox (Best identified by their Borderlands series of games,) is known for.
Beyond that, as mentioned, the game can really hook you with trying to unlock characters, costumes, gear, and more- and it's spaced out in a way that feeds you just enough to keep pushing forward.
Multiplayer can vary from full out competitive modes to private matches, and if the campaign isn't enough to keep you playing for unlocks, the multiplayer will.
This has been a great year for multiplayer-centric shooting styled games, but unfortunately, Battleborn, much like another on that list, Titanfall 2, is underplayed largely due to there only being so many hours in a day and people having to choose between it and a powerhouse with a larger player base. (In the case of Titanfall 2, it was released practically alongside Battlefield 1). In both these cases, Titanfall 2 and Battleborn were largely loved by critics, it just came down to logistics of the release timing. I'd urge anyone and everyone, regardless of whether they own Overwatch or Battlefield 1, to give both Battleborn and Titanfall 2 the opportunity they deserve and add them to your library, then add them to your weekly gaming rotation. Both are new properties to PlayStation, and both are labor of love new IPs that need to be kept so they don't end up as "good ideas that didn't stick".
Both of these games have come down in price at Best Buy, and both together can be had for the cost of one new game- and they'll quickly grab your attention.