Early Game

For context, I played with this modpack on a server with a small group of friends. Throughout my experience, I never researched anything about the pack, and I had never played an FTB pack before.
The start of Oceanblock 2 was great. You choose a starting ship and explore from there. The gimmick of the world being only a large ocean was actually a fresh take on early minecraft progression that focuses more on exploration. I didn't expect to enjoy the ocean world as much as I did.

Mid Game

I had a lot of fun problem solving with the multitude of tech mods in this pack such as Mekanism, Oritech, Immersive Engineering, Refined Storage and Applied Energistics 2, and Nuclear Reactors. This pack introduced me to a lot of tech mods and mechanics I had never seen before, while also integrating them together in interesting ways. It does feel like a kitchen sink pack at times since there is little thematic elements except for some ocean-related mods like PneumaticCraft.

Late Game

For me, the weakest part of this pack was the end game. Spoilers: The end goal of the game is to beat a boss and reach the overworld. To reach the dimension where the boss resides, a lot of setup and tedious grinding is required. The dimension itself is pretty cool build-wise, but the builds are empty apart from the same mobs and barrels scattered around. In general, the dimension felt slightly soulless. The final boss fight was super easy and uninteresting. By just completing the questbook progression, the final boss barely lasted a minute. Finally reaching the overworld was pretty underwhelming too, as it seemed basically unchanged from a regular modpack. The ocean world was far more interesting, and it would've been cool to see something different about the overworld. The ending was anti-climactic and didn't feel like it was worth the effort.

Overview

Despite my feeling about the ending, I had a lot of fun with this pack. There is hours of content to explore and the questbook ties a lot of the mods together to make a fun, cohesive experience.