I found both these balls to be a great bang for your buck. Low price entry point  although with  plenty of performance the Hustles will be excellent for those lower to medium oil conditions.
The solid provided a pretty smooth reaction. Finished with a polish this ball is clean through the front part of the lane and provides plenty of predictability down lane without overreacting. I have a pin down layout on the solid which allows me to keep the shapes and angles in front of me and play more up the lane. As that begins to fade I can transition to the pinup M-M to get the ball to see the lane sooner and allow me to open my angles up.
I really enjoyed both these balls and can see myself using them as my weakest balls in competition.