Complex sentence: Product reviews and analyst reports give Act-On positive reviews for use by small to medium-sized business due to its ease-of-use, simplicity and cost, but say that it does not have many of the sophisticated features needed for larger enterprises.
Split into simpler sentences: Product reviews and analyst reports give Act-On positive reviews for use by small to medium-sized business due to its ease-of-use, simplicity and cost. They also say that it does not have many of the sophisticated features needed for larger enterprises.