I played it. It's not bad. Controls are nice. Gameplay is pretty good. Enemies are a bit too easy. The biggest issue is that all the rangers play exactly the same. None of them really have any different moves. The only differences being stats, which you can't even tell much of a difference between. On top of that, the selection of rangers is pretty crappy. The vast majority of Rangers in the game or from the Disney era. The only exceptions being the MMPR and Lost Galaxy. The ones they added seem random. Each team has a total of 4 rangers you can unlock. 3 you get for completing each level, and the 4th you get by collecting all the tokens in the levels.
With the exception of SPD's Shadow Ranger and Omega Ranger, and WF's Lunar Wolf Ranger, none of the extra rangers are in the game. That means no Green or White ranger. Instead, you get Red, Pink, Blue, and Yellow as the bonus.
The Zord battles are also lackluster. The models look nice, but every Zord does all of the same attacks. None of them use their main weapon, and they all fire a chest beam for some reason. The battles themselves require specific button presses to fill a meter before the monster gets theirs filled. Once filled you do an attack. You keep doing this over and over until you destroy the monster.
It's the best PR game in awhile, but it's still sub par. I'd say the most it's worth is $20.