We bought one set of these tables for a downstairs rec room, then bought another two sets for use in our main floor living area.  They are all hardwood and quite solid.  Only two small suggestions for their improvement:  One, the underside brace against which the legs are snugged up by tightening screws is, in some of the tables, mounted too far away, keeping the legs from actually fitting as snuggly as they might.  That said, they still feel solid and probably will hold up fine.  It's just a minor processing step that could use a tighter manufacturing tolerance for a consistent good fit.  
Second, our two different lots, bought several weeks apart, had two different size tops for the largest of the three tables.  Not really a problem, but glad I measured all of them before getting glass cut to go on the table tops.  With these two changes or even the first one alone, I'd rate them five stars.