@scottalanmiller Thanks for the suggestion Scott.
The "4" is a really nice unit. Still small, but really powerful.
This really is your only choice right now if buying from UI direct. It's the only router they have available in stock. Is there a link to "Jared's test" ?
Posted somewhere on this forum.
The ERL gets ~60mbps with QoS enabled. I honestly cannot recall what the ER-X did. I thought it was in the 150mbps range, but my memory is not the best thing in the world.
It IS a little faster than the ERL, faster CPU. Less RAM, though, so some features can cause it to struggle.
QoS and other non-offloaded things are all CPU constrained. Unless you load up extra processes on anything in the ER line, you will not typically run into any kind of memory constraint.