Looking at the reviews, there doesn’t seem to be a huge amount of love for it. It is just a steering frame which I suppose makes the controller easier to handle when using tilt/turn functionality of the DualShock 4. Best way to decide about it would be to use your controller’s tilt functionality on DriveClub, see if you like it, if you do and want a better grip and visual reference, get the frame.
To be honest, it is useless to resist. I will beat all of your DriveClub times, you know it to be true. It is your destiny. :P
Sounds a bit like a Wii accessory that really is destined for the over exaggerated mid air thrusts that don’t really translate to what might be going on trackwise, although shouting “Honk honk” could bring a touch of realism :P