An average of more than 18,000 turn out to see the Timbers at home and it is fast-becoming the hardest place to play in North America's top flight.
The Timbers have recorded five wins at JELD-WEN Field, losing just once, and even though it was his side who produced the only victory by a visiting club (last weekend), DC United's Ben Olsen was full of praise for the home side.
"It's unbelievable - unbelievable," Olsen told Timbers media relations personnel.
"You have to come here and play to the field, but the atmosphere is unbelievable.
"If you can step away and look at it from a league perspective - what a great place, what a great environment, and what a great job the owner and the whole franchise have done to create a great atmosphere."
Real Salt Lake head coach Jason Kreis agreed: "It's fantastic," he said. "Portland should be proud of themselves and the players should be thrilled that they get to play in this environment every week."
Whilst FC Dallas' Schellas Hyndman was also complimentary: "Fantastic," he said. "Fantastic atmosphere. The fan base of Portland should be really proud. I thought they came out and added some energy to the team. There's no doubt that this team is playing with such inspiration because of that fan support. You can call them the 12th man or whatever, but I think when you win your first two games at home that just tells more and more things for the future."