The importance of agile methods increased in recent years due to the need of being more flexible due to unstable requirements and high competitive pressure. Therefore, recent empirical studies have been conducted identifying a number of issues and advantages of incremental and agile methods. However, the majority of studies focused on one model (Extreme Programming) and small projects. Thus, in order to draw more general conclusions there is a need to also study large scale implementations of agile and incremental practices. Therefore, this paper 1) investigates a large-scale implementation of agile and incremental practices and identified issues and advantages and 2) compares them with the findings of previous studies mainly focusing on small-scale agile implementations.