PowerScore has long been a legit force in LSAT prep. They were bought out by BarBri not long ago. Barbri specializes in law outlines and bar exam prep. The purchase in my mind was a sign that PowerScore had achieved a measure of success.
PowerScore now has new study books available that align with the LSAT's new format.
See [Here]1.
The August test was the first without Analytical Reasoning (logic games). Yet, the scores were "very much in line with August scores in recent years and our expectations."
It is believed (by some) that the August test employed harder types of logical reasoning questions. The more difficult ones involve formal logic, conditional reasoning, and reasoning with numbers and percentages. It used to be that the amount of these kinds of questions in any logical reasoning section was more limited. The belief is that they are now increasing in proportion.