I've been using it for a couple years (2 maybe) and I like it quite a bit as a quick and easy way to save pages. ArchiveBox looks fantastic, but I just don't have the motivation to set up the service and maintain it since I don't save enough links to make it worthwhile. SingleFile might be worth a shot, but it looks like WebScrapBook has been handling your needs just fine (they seem to have 90% of the same functionality).