It was fun to set up and in doing so I learned how well written the original paper is. Simple. Concise. Makes for great one-liners like: "The only way to confirm the absence of a transaction is to
be aware of all transactions."
TBH though with Toshi still on testnet it feels like a pre-release beta. Fun to test on but kind of pointless since it's trading in Monopoly money. Why would anyone ever adopt this? Or, more importantly, why would anyone ever switch from WhatsApp or WeChat (which seems to be the vision if you read their blog posts)?
Btw the developer documentation is excellent! In case anyone over there reads this, well done!