I have also learned a ton from this book, and I absolutely loved it. Feel free to contact me on reddit if you need any explanation, it's the least I can do to help the math community on reddit.

Hello traveller. /u/uhDark and I finished the book last week and are now moving on to greener pastures.                 
Should you find yourself in need of a helping hand feel free to contact me. My understanding of the material was not always 100% but maybe I can help. I've also kept a physical copy of all the solutions we provided to the exercises (of course we didn't do ALL of them). In the first chapters we've also done even-numbered exercises.             
We've really digged the book and learned a ton from it. I cannot speak for my partner in math, but I'd hate for this sub to die. I want other people to profit from this book. So really, feel free to raise your hand. If I can help I will.

Continuation - This sub shall not die