They look like more than 75% full right now. That could create problems if you need a transaction confirming quickly. You could probably average the blocks out over a few hours to make it look like the average is below 75% full, but that doesn't help people who need transactions confirming quickly right now. There are times when the average is below 45%, and other times when it's above 90% (which is creating problems).
https://blockchain.info/charts/avg-block-size?showDataPoints=true×pan=30days&daysAverageString=1&scale=0&address=
0.71mb = there's an extra 40% capacity.
Ane people are still paying peanuts for the bulk of transactions (free or near free): http://www.cointape.com/
....with not much "urgency" in their tx confirmation - otherwise they'd bump their fees up by a few satoshis.
On the other hand those that pay more normal fees, get included in 0-1 blocks.