With all due respect, Eureka tents are built to a price point. In other words, as Lisa Thomas said several posts back, you get what you pay for. Hilleberg uses different materials (sil-nylon), superior construction, stronger design (4 season), and comes in at substantially less weight (the comparable one is a pound lighter).
All this aside, the Eureka appears to be a knockoff of the Hilleberg Nallo, so it can't be all bad. In fact, it might be the right tent for all sorts of people. But to compare it to a class act like Hilleberg (or, for that matter, anything designed by Todd Bibler), is at best disingenuous. Different approaches from start to finish. You've got to decide what sort of quality you're after, and whether you're willing to pay for it.
I need to stay clear of these threads.
(two nights after sleeping in my Hilleberg at Salto Angel, Venezuela)