An amazing variety of parts and components to choose from, where PC Specialist will let you know if any any parts you've chosen are incompatible so you don't mess up your specification. PC was delivered with no issues (maybe it took a few more days / a week longer than I expected), but really not complaining, and started working right away straight out of the box. The forums section on the site is also super helpful in terms of getting the best bang for your buck, and there's a lot of great and dedicated community members who help out building the PC, given the budget and use case. Very happy with my PC and the service, and will very much likely use PC Specialist again once I need an upgrade of some sort.