Would really like to get a co sleeper cot this time around, look the biz and I've heard great things. Not sure which is the best to go for. Id love one flush with the bed, but I also see the Arms Reach one gets great reviews but I don't like the idea of the dip in them. Has any one used got any advice for me on what they used. Also don't want to spend big bucks, 3rd and final baby.