Pros
Security of a large firm certainly allays any fears of the company being acquired, in this case they are the big fish eating the small. The company does have a strong focus area in the content management space.
Cons
They just keep buying smaller companies without fully digesting what they have, all to make the balance sheet look good. The nett effect is a very mismatched organisation with no sense of a common culture and many business units acting as if they are competing with one another. the company that I was with was acquired by OpenText in 2013 and when we asked the COO if he had any idea of what the technology offered, he openly said "No, but the balance sheet looked good, so we bought it". Needless to say, I left shortly afterwards.