Are the Cleveland Browns good?

Since being reestablished as an expansion team in 1999, no. They were the most dominant team during the 40's and 50's winning 7 championships(4 in the AAFC and 3 in the NFL), strong contenders in the 60's, winning their eighth and last championship in 1964 and once again strong contenders through the 80's, and had a promising future in the mid 90's until Art Modell moved the franchise to Baltimore.