I haven't used their guiding services but I've bought things here and there they've posted on speypages. Always nice to me and pretty helpful when I've had questions. If I was looking for an OP trip they'd probably be my first choice.
Neil and Alyssa are great folks, fly tiers, and fly fishers. They focus on swinging...not a lot on bobbering. They have been living out on the Hoh for a couple of years now and have a ton of knowledge about the rivers and the local area...They are extremely passionate about the OP. I would highly recommend spending a day with Neil...he'll put you in the right areas to give you the best chance to swing up a fish, you'll have great time, and learn a lot of great info. Give them a call or stop in their fly shop to have some coffee, check out their flies, and BS with them...my money is on you'll dig them.