J.Crew's Suits For Men

In the "Men's Clothing Collector's Items" post, Lena, Abijah, Blumre, and others were discussing J.Crew suits for men. I thought this topic is a great one that deserves its own post.

I personally believe that the Men's suits collection looks quite nice. Although I have not seen them in person- so I can't speak of their quality. :)

What are your impressions as to the quality of J.Crew suits for men? How is the fit/cut of the suits (e.g. do they tend to run narrow)? Is there a particular fabric (e.g. Italian Chino, linen, wool, seersucker) that is better to purchase? Are J.Crew suits for men a good investment (e.g. last for a long time) or are there other places (e.g. Brooks Brothers) that are better "suited"? ;)