At first I found this phone to be extremely easy to use with no visible drawbacks. The walkman function worked quickly and, i'd say, to the same standard as any other mp3 player. However, this was only true when there were few songs on the memory card. As soon as the number of songs was over around 250 the phone started to become sluggish and would take a long time to change songs. Although this is a large drawback, the majority of the other phone functions work well. Making calls and texting are simple and the addition of viewing text messages as a 'conversation' is highly useful when trying to remember what was said in a previous message. Battery life is relatively good as, after having this phone for almost a year, it still lasts for several days unless you use the walkman function regularly which leads to the phone needing to be charged more often.
As a phone it is reliable and easy to use but some of the functions can become sluggish over time.