The sixth Amityville movie is pretty good... Better than I had expected, actually. The acting is TV-quality, but it's not horrible or anything. The story is a bit of stretch from the original, but still interesting none the less - Which becomes more apparent towards the ending.
There was one part part that was TOO cheesey where the old woman decided to risk her life trying to get her cane out of a crack in the road while a driverless truck was speeding towards her... You might get a chuckle out of it though!
If you enjoyed Amityville 4 (the other sequel I've seen), this one is comparable in a lot of ways - But better.