So I feel like this is the time I usually take before each sale to apologize in advance and let everyone know that Enhanced Steam's servers will likely be overloaded for a while, especially so when the sale first starts. It will be interesting to see the server load at 10am every day during the sale, considering that's when it typically spikes up to insane levels in other sales due to new daily deals being rolled out. Without these deals changing every day, I'm curious to see if there will be the same traffic spikes.
When allocating servers for the sales I always try to get enough horsepower to where I can sit back and say "Okay, there's no way this is going to get overloaded" (within budgetary restraints, of course) but every sale the level of traffic always surprises me and always exceeds not only my expectations, but also my expectations of what's even possible.
It's been nearly 3 years since I first released Enhanced Steam, and every major summer/autumn/winter sale has been the same cycle as described above. Now that it's been downloaded nearly 2,500,000 times (hint: it's likely that today will be the day it reaches 2.5m) it's hard to imagine that it started out on a shared VPS hosting plan and has grown now into 9 API servers behind a pair of redundant load balancers (11 dedicated servers total).
With any luck, there will be enough server power during the sale so that everyone who wants to can enjoy Enhanced Steam's features to the fullest. But please know that if things do go south, as tends to happen, that I'll be working on bringing additional resources online as quickly as possible.
Thanks again for everyone's support now and in the past, and I hope everyone has a great Steam sale!