As a DIY'er and a Home Owner - I frequently visit Home Improvement Stores. Since I live and work in close proximity to the Bridgeville Area - I tend to visit either the Lowes or HD for my HI needs. Although the South HIlls branch is some what closer than this - I always make an effort to come here because 1. Service 2. Size compared to South Hills (hence more products tend to be available in store)
There seems to be more staffs working and looking to help compared to Lowes which is few minutes away on the same street. Just yesterday, we stopped by both Lowes and HD to shop for a set of new washers/dryers. Since, we couldn't find anyone to help us at Lowes (which has happened one too many times now) - we drove the extra mile to HD and it only took few minutes before someone came to assist us. So, we ended up buying the new set here.
So, if you happen to be debating on either of the big HI stores - I would recommend coming here.