I feel I need to preface this review by saying I have used the Bleep DreamPort since it came out 3-1/2 years ago. It is the ONLY mask I have been able to use for more than a few weeks without switching to another one. I think I went through upwards of about 18 masks my first 14 months on CPAP until the Bleep came out. Also, in the interest of full disclosure, I was a beta tester for the Eclipse.
As stated above, I was a beta tester for the Eclipse and loved it! For several reasons, I find it an improvement over the DreamPorts, which is the only mask I really was able to use. I have arthritis in my hands that affects my fine motor skills, particularly during cold weather (the brutal cold we are experiencing right now is miserable!), which makes it difficult to attach the Dreamway interface. The adhesives (both DreamPorts and Halos) go on just fine, but if there is the slightest issue with the Dreamway interface, it can take me several tries and several minutes, and leave me in pain. With the Eclipse, WOW! Just get it close and it's on. Sometimes maybe a little nudge to center, but that's it. The Eclipse is a pliable silicone that will adjust easily to the angle of your nose (let's face it, not only is everyone different, but some of us are also asymmetrical!). The hose is flexible and approximately 15" between connections. The Eclipse comes with the black "bikini" diffuser.
Another advantage, is that the since the Halos sit flat on the nose, the entire mask/interface is shorter. If you tend to bury your face in the pillow/bed as side/stomach sleepers tend to do, you will probably appreciate that extra space, as I do. Total height is 1-1/4". When I started on CPAP, my husband (also a PAPer) told me I'd never be able to sleep on my side/stomach again. Well, too bad, so sad, the mask stays on through all my restless tossing and turning and burying my face, etc.
One huge plus for me, because we like to travel and have started again, is how easy it is to pack the Halos. In fact, one box can easily hold 4 weeks, and I think, possibly up to 6 weeks, worth of Halos.
Pro/con is leaks. Eclipse, properly applied is leak-free. Amazing! Wonderful for my eyes, no leaking to aggravate dry eye. Any leak that shows up in my OSCAR is mouth leak. Yes, my mouth does occasionally drop open. Fortunately, it is not enough of an issue that it affects my therapy and rarely even bothers my throat.
One disadvantage for some might be prep. You can't just slap it on and go to bed. Because of the adhesives, you have to be sure your skin is oil-free. It's just a very small additional step for me to take a witch hazel pad and wipe my nose after I've removed my makeup, washed my face, and toned (except around my nose!). Maybe 5 extra seconds? Not a big deal. And I trim the adhesives when I open the box, straight cut off the long ends and one short end. Easy peasy and I'm ready to go for 16 nights.
Oh, I guess another disadvantage for some might be if their DME won't get it for them. The cost. Once I tried it, I realized the cost/benefit ratio was skewed towards staying alive. I NEED my CPAP to stay alive and this is, for me, the only mask that works. My insurance is so bad I've been buying the original Bleep out-of-pocket (shopping sales + discount codes because it's actually cheaper than my insurance copay), so I do what I have to do. Totally worth it!