Pluspunten
There are very obvious advantages to working for a growing company ... lot of the growth is market driven, however, and not due to anything the company does. Since there is no process or internal methoidology, you have freedom to invent stuff as you go along - very often that is best practice and you can call it as such. You have tremendous freedom to do whatever you want as a result; lots of opportunities to learn on client dime.
Minpunten
Long hours as only middle management is in the US - you need to liaise with lower grade staff in India as well as company management; clueless management; The politics here is amazing considering that there is nothign to gain - you need to be a South Indian with a terrible accent to make progress here.