We had ours on 'Now', but on a recommendation of the store (which features holistic dog foods) have now switched to 'Solid Gold/Just a WEE BIT'. Our dog loves it and it has all natural ingredients without any chemical preservatives. When we added it to the Now - she picked out all the Solid Gold kibble.
Having said that, there is a lot of controversy regarding grains, and I as a newbie am still sorting through the information myself. Hopefully some of the experienced members will hop in and add their expertise.