I have shot several chassis guns but could not afford them. Prices are coming down as more companies are making them, but they're still hundred$ more.
With the Magpul I was able to get a good cheekweld and could get more comfortable behind the gun because I could increase the LOP for my frame.
Downside is you have to remove the risers to clean it (to remove the bolt) - a nice chassis gun you can merely fold the stock out of the way.
I make up for that by just not cleaning it. (JK!!)