Sealed concrete is an option for people who want a similar look to polished concrete, but with out the high cost. Sealed concrete will provide a contemporary looking floor that will be easy to clean and last up to ten years with proper maintenance.
Depending on the desired look you are looking for, the sealer can be applied with or without grinding the concrete first. If you choose to have the sealer applied without grinding the concrete, you will see move of the movement associated with troweling the concrete. If you would like to see some of the stones in the concrete, you can have us grind the concrete first, and then apply the sealer.
Here are some pictures of a sealed concrete floor. The sealer was applied without grinding the concrete.