They are an OK but not a great company. From what I've seen, their products are middle of he road as compared to their competitors.
For instance in mass spec, Waters, Thermo, and Agilent are kicking their butts.
Lab automation they are holding their own, barely, against Beckman, Thermo, Tecan, etc
Cell Biology they sell something related to Luminex, but Meso Scale is creamng them.
If you are unemployed or worried about losing your current job, they would be OK--any port in a storm as they say. But if you want to make a step up, go to their competitors.