Pros:

1. Tachain has released MVP on appstore. This huge success brings courages to investors.
2. Ta chain has done a great work on promotion. It sought help from Cryptoast to advertise, and sponsor for different events.

Cons:

1. The whitepaper can be more detailed, such as mentioning risk analysis.
2. Tachain is a fantastic project, thus its future demand will rise rapidly. I think its team requires more professionals and developers, in order to satisfy all the desires.