Well, I went with a much larger pond than I originally planned - it's about 500 gal. I got the Laguna pressure flow 1400, probably much more than what I need but for $35 I doubled my pond capacity over the 700 (should I decide to make it bigger sometime).
You can just see the top of it in my pics in the post "Should this algae stay or go". So far I am very happy with it, of course I don't have experience with others. Very easy to clean, takes me maybe 5 minutes tops once a week.
Although, yesterday as I was doing the cleaning I had my 2 year old holding the hose where the dirty water comes out. I was obviously more concerned that she kept the hose in the bucket, out of her mouth, etc. I forgot to turn the knob that forces the water out the backwash outlet instead of back into the pond. I ended up with a weeks worth of crud back in the pond...