I'm feelin ya, man. Took me 2 months to get all the knickknacks together ($$$). The eco-complete is fantastic (so far). The size and density is perfect. Easy to push in fragile stems, but it still holds them very well. Also, there is absolutely no dust to worry about. The tanks had a whiteish haze for an hour or so, but it quickly turned clear.
I was torn between the 2215 (classic) and the 2235 (ECCO). Wound up getting the ECCO because the price was very right. I think that the pump rates are similar, but the 2215 has a bit more media area. The current the 2235 has created seems about perfect. I had to cut down the spray bar to make it fit on the side of the tank. Since I cut off 2-3 spray holes, I widened the remaining holes with my dremel (just to make sure I wasn't restricting flow). I aim the spraybar down and towards the glass (for now). The creates a gentle current that sweeps the bottom of the tank.