Here are the pros and cons.

Scooba

Pros: hands free with minimal interaction.
Cons: It takes forever to clean. It says it preps, scrub, dry in one pass but I highly recommend sweeping before starting the machine... even with one day of dirt on the floor. It definitely does not get all the scuffs off the floor... nor your corners. Only good for everyday use.

Shark Steam Mop

Pros: No chemicals so very child safe product.
Cons: You'll need more than one mop headcovers if you have large floors and may need to add more water depending the square footage you are working on and how much steam you use to clean. Definitely does not get all scuffs up. Deposits dirt in corners if you don't change out the mop headcovers. Cord may not be long enough for some. Only good for everyday use.