I'm a big fan of Syrup - they've gotten more offers and the deals have become even better with their previous vendors over time. Big fan and the team is so friendly.
The team at Syrup have been quietly curating the best catalogue of startup discounts on the web. They actually get merchants to offer exclusive rates that you can't find through extensions like Honey or Wikibuy. If you are running a startup, working at one, or just hacking together a side project, there isn't a single reason you shouldn't be using Syrup!