That will work just fine. With a mister, atomizer, misting spray or bubble cloner, a humidity dome is not necessary. A humidity dome is not necessary anyway, and the only reason I use it is to hold in heat and keep the rockwool from drying up. The less you have to water tray clones, the better the root formation will be. Using a dome will increase humidity no matter what method you use and will also speed up the rooting process. But the bad news is, when it is time for the dome to come off, the plant will be subjected to shock and could die if not weaned properly. On the other hand, some strains do just fine.
EZ cloner IS easy to use. There is absolutely nothing better, in my opinion, than an aero cloner. I myself use rockwool and tray, or a bubble cloner. Bubble cloner is the same as a hydro cloner, and works almost the same way as the EZ cloner. Just set your clippings in and wait. No maintenance necessary, roots in about 5 days.
My bubble cloner? No, it is not an aeroponic cloner, it is hydroponic, with the same design as DWC. The bubble cloner is much, much smaller and has much more air being pumped into it. The EZ cloner works several ways, depending on the model you buy. There is the mist feeder, the gravity fed, and the fogger with a cool little novelty atomizer you can play with in your off time. Makes cool fog, great for warm sunny days. I've taken apart quite a few3 of them to salvage the atomize
My favorite, by far, is the bubble cloner. That's because it can be made dirt cheap and requires almost no maintenance. My preferred method, however, is good ol' fashion germination tray. My cloner is free if you have an air pump.