I've been using Tomato for more than 10 years now... my first few were all Linksys WRT54G(L). I migrated over to ASUS as they had a pretty good run, and even ran RMerlin's excellent code for a while. I found that my ASUS routers weren't keeping up with the traffic in my house and bugs in the QOS code prevented me from isolating devices that would swamp the network and kill VOIP conversations and other real-time sensitive devices. I switched to Toastman on all my devices a couple of years ago...
Dilemma with Tomato QOS and the Netgear R7000
Dilemma with Tomato QOS and the Netgear R7000