Just finished with Octopath Traveler last night. After playing Cypberpunk I wanted something a little more lowkey and chill as a palette cleanser. That's just what OT is. It's very old school as far as the turn based combat (Although with caveats) and the 2D HD graphics. I thought the sprites were well done. The whole 8 character, mini-episode storyline was decent. It reminded me a lot of SaGa Frontier as you play each character's story and they come together.
The combat system was similar to Sea of Stars (Or given the fact OT came out first I guess Sea of Stars stole the idea a bit). Enemies have "Locks" of sorts on them, weaknesses basically to certain weapons or elements. Once you find and hit their weaknesses enough times the enemy gets stunned and then you can really open up damage on them. There are other mechanics that get added throughout the game, usually for boss fights to make things a little more interesting...for instance, if a boss has 5 possible weaknesses out of 14 possible weapons and elements, they may start a fight with 3 of the 5 weaknesses being unusable, making the beginning of the fight more difficult (Especially if you lack the remaining 2 weaknesses in your party). You may have to kill a few guards that joined the fight before the other weaknesses are available, or you may need to stun the boss at least once to open up the other weaknesses.
During the first chapter I found the game a little too simple and un-engaging as they introduced characters and they limited you to just the starting character's classes. As you get into Act 2 you start finding Class Shrines that unlock 2nd Jobs for characters. This allows you to really tweak with builds and make some interesting setups. While only one character can hold a particular 2nd job, like Warrior, you can switch them at any time. Only the character with the active 2nd job is able to use said job's abilities in combat, BUT any secondary passive skills that you learn as part of that job can be selected at any time. For instance, Warrior gets a passive skill that allows you to break the 9,999 damage cap. This is obviously an ability that would be beneficial to any damage dealing classes, so it's suggested all your damage dealers spend time with the Warrior job even if they're casters. This can lead to some pretty overpowered builds if you play around with the system, I enjoyed toying with different setups and testing. In addition to unlocking each of the main jobs as secondary jobs for the characters, there are 4 hidden special jobs that are unlike any of the main jobs. They're obviously more powerful and include some very strong passive abilities.
Overall I enjoyed the game quite a bit, it was a relaxing distraction. There's some great stories in OT, and it's kinda neat how they all tie together in the true ending. The secret ending and boss turned out to be more difficult than I expected, I ended up having to break into my stash of rare potions and such that I normally don't use in a JRPG. That final secret boss throws quite a bit at you, and if you didn't do a good job growing all 8 players during your journey you end up in trouble because you need all 8 for the fight. Interesting note that I didn't find out till later, but the "Octopath" name is more than just a clever title for the 8 character adventure. It also spells out the first letter of each character's name. What's more, if you look at the map and follow the starting location of each character clockwise it actually spells out "Octopath" geographically. Just a neat factoid. If anyone enjoys old school JRPGs and sees this game pop up on sale I would recommend it.
P.S. If you never got around to playing this one, one thing to keep in mind: whatever character you pick to start the game with becomes the "main character" so to speak. It doesn't change anything from a story perspective, however that character will always be in your party and can't be removed until you finish that character's final chapter, Chapter 4. Once you do that, the credits will scroll (The game continues afterwards) and you can swap the character out finally. It's not a terribly big deal, but I would suggest whatever character you think you'll like the most would be a good one to choose here. I went with Ophilia as she was the Cleric, figured it would be good to always have a healer in the party and you can't really go wrong choosing her.