'Born again Christians' are like everyone else - different. Some are enthusiastic happy clappy evangelists and join a 'modern', others are restrained traditionalists who worship at a CofE, RC, Metohodist, Baptist old-school church and many others are somewhere in the middle.
Some people who have been raised in the traditional church migrate to the 'new style' in later life but don't consider themselves 'born again'.
Christians come in many different flavours and all are individuals. Most are good people, a few are very good people and some aren't, same as any other section of society.