Theft of Swords discussion

Ok, so I've started reading (in audiobook format) our March Madness winner, Theft of Swords. I didn't vote for it but I'm giving it a try.
I enjoyed the first chapter - it reminded me of Kings of the Wyld in a good way - and I'm always up for a story about snarky misfits.

However, I'm now 4 chapters in (at the part where (view spoiler)[ they've just arrived at the prison and walked through the wall (hide spoiler)]) and I'm feeling... a bit meh about this book. It all just feels a bit over-familiar, much like all other fantasy books ever. Thieves, assassins, kings, dwarves, a tavern... seen it all before. There's nothing terribly wrong with it, but there also isn't any kind of 'Wow, that's a really cool magic system/world-building concept' which is what I really want from my fantasy.

So, those of you who voted for it, I want you to sell it to me. Tell me why I should keep reading. What awesomesauce will I miss if I Lem it? Is there an astounding plot twist just around the corner? Is the character development unmissable? Is the magic system amazing?

For reference, my favourite fantasy writers include Robin Hobb Brandon Sanderson and N.K. Jemisin