To me, the quality of the item matters more then the size of the company making it. There does seem to be a weak but positive correllation between more personalized customer service and quality with smaller companies, but that is because they are more effected by a bad report of products in the smaller markets they cover, vs. a larger corporation with a larger market share, product distribution and lines, etc.
Examples of both sides of the coin are plentiful, I have had excellent dealings with small companies (Shire’s Tarptents, ULA) and large (MSR and MH) and bad experiences with others (North Face, and some climbing company whose name skips my mind, so called quality clothes that were terribly sewn and poor customer service).
As for MH, I have always found their products to be exceptionally well made (albeit pricey), now and then. I still own my Columbia jacket circa 1992, worn for skiing/snowboarding/snowmobiling/etc (any many accidents/falls/spills), still warm, never had to repair a stitch.
Companies I am wary of: TNF, ACG, Kelty, Jansport, Coleman, Walmart, Fruit of the Loom, to name a few. Low quality stitching and/or fabrics, or other problems. I am sure not everybody agrees to this list, these are my own personal experiences.
-xtn
airferret