micoach is all you need to get the results you want.
Having just started playing Futsal in town I picked up some Sambas. A year later and a thousands kicks I purchased the ACE5.3 Indoor Shoes. They did exactly what I wanted in this upgrade - flatter to get under the ball. I've had a few games in these so far and they hold up to Adidas standards in shoes meant for ball play.
At first they were a bit tight but after a few training sessions and games they've molded to my foot and are much more comfortable now. The one really nice thing about this shoe in relation to others is that the sole is quite thin and the front of the shoe is much closer in feel to a classic cleat than it is to a sneaker. The touch is nice and the thin sole means you have a more direct contact with the ball and the floor. Overall they're quite comfortable but the tightness of the shoe limits the insoles you can use with these. Plan ahead and buy a half size larger if you need to wear insoles. As for the look I'm not a big fan of these super bright and super loud boots. I'm sure a younger player would enjoy the style better. The one thing that struck me was how synthetic looking the synthetic components of this shoe are. I'm a fan of leather personally. Overall I purchased them because they were fairly cheap and I needed a pair to play indoor ASAP. For the price I paid (about 50$ USD) I found these to be worthwhile. If you can get them for less even better.
I'd tried breaking them in its a bit tough I believe I have an average width foot I wear a size 9. But the width is a narrow than average compared to Adidas Millenium Samba that I have been wearing. But for my first time wearing the shoes it's very tight on the size. It been about a week some improvements but not much. So I would recommend if Adidas has the 15.3 in an medium width shoe to get it. Beside that the show is great love the colors it stands right out.