PHP Framework or No Framework for Matrimony like Website.

I read many times that Framework is not good for product development. Should I use one or it is just good for developing a software and shipping to client?

I read that Yii is a fast framework, faster than other. Will it be good for me?

Please suggest with keeping in mind that I am looking for High traffic and high volume DB Website. Because I will only develop this as a pet project so it will also go several round of redesign to make it better.

I read at many places including stackoverflow that Framework is good in discussing things and it is easier for others to understand code. This advantage is not here as I will only develop this code.

I do not plan to market it as product but will use this myself in business if everything goes well.


Thanks!