Do you find this "turning her body to do backward or side movements" makes it more difficult to play or get use too? How far along in the game have you gotten GamingPhreak?
Some of Lara's moves require her to face forward the entire time. Sometimes she has to back flip (instead of turning 180 degrees and jump the other direction) in order to solve certain platform puzzles. So this is a problem. I've found out that in order to do those moves, Lara has to have her gun equipped. For instance, one tricky move has her back flip to a slanted surface, then jump forward and upward to grab a ledge that would be otherwise inaccessible. Since she can't back flip without equipping the gun, and she can't grab a ledge without UNequipping the gun so her hands are free, that means she has to unequip the gun IN MIDAIR (between the back flip and the forward-upward jump). THAT is what you have to get used to if you play with the modern control. Even if you get used to this, you can't help but feel (like I do) that this is not how this is supposed to work. Most players will likely stick to the original control, which they are more familiar with anyway, and be unaffected by this.