Both have the same poor circle of deviation;
Off the tee they both pull up fine;
From fway the L97 has less stopping power, and that of course shows at some holes more than others. Play a par BoP5 and the L97 will help on some, but take at others (could carry both of course);
You get the full extra 5 yards FBS off the tee (ish as guess varies per ball), and off the fway it's useful to creep over to a few places the L89 can't reach.
Far from any magic wand to any score and an addition to your arsenal rather than a do all, but a nice new toy if feeling the need to spend.
JMO