Is my employer worth investing in?

I was recently hired by John Hancock, and one of my benefits is the option to buy company stock, which they will match me on at a rate of 25% (i.e. I buy $100 in stock, they match me another $25 in stock).

Obviously this is worth it for the 25% match alone, but I’m curious if anyone more knowledgeable than I can tell me if the stock is worth investing in otherwise, or if I should bank the match but look to withdraw the stock periodically and invest it somewhere better.