Struts1 and 2

[Sivapatham, Hari]

Hello,
Even though struts1 versus struts2 has been described in detail, I am
really looking for something qualitative that only struts users could
shed some light on. We are looking to choose a web framework for our
project and I suggested going with Struts2. However, since other product
teams in our company use struts1, there is some pressure to consider
struts1 as well. So, the question is, how much of the knowledge gained
from struts1 directly applicable to struts2?
 
Thanks
Priya