DAT Booster is one of the most popular full-DAT prep bundles, and most reviews of it cover the whole platform. This one is narrower on purpose. If you are specifically wondering whether Booster is enough for reading comprehension, here is a focused, honest take.
Short version: Booster is a good bundle, and its RC coverage is fine for students who are already solid at reading comprehension. If RC is your weak section, it is a starting point, not a complete solution.
What Booster does well for RC
As part of a full bundle, Booster gives you RC passages inside a familiar, well-built test interface, integrated with your overall DAT prep and score tracking. You practice RC in the same environment as your sciences, which keeps everything in one place. For a student whose main need is exposure and full-length simulation, that is genuinely useful.
Booster treats RC as one section of six. That is the strength and the limit at the same time.
Where it leaves you wanting
Because Booster is built to cover the entire DAT, reading comprehension gets a share of attention proportional to being one of six sections. In practice, that tends to mean two things for RC specifically.
Passage depth. The RC library is sized for a section, not for a specialty. A student who needs to grind a large volume of realistic RC passages can run through the relevant material faster than they would like.
Diagnostics. This is the bigger gap. Fixing a weak RC score depends on knowing which question type is failing you: inference, tone, detail, or main idea. General score tracking tells you your RC score went from a 19 to a 20. It does not tell you that inference questions are where you are bleeding points. Without that, you are practicing blind.
How to fill the gap
You do not need to drop Booster. For most students the right move is to keep it for the sciences and PAT, and add a dedicated RC tool if reading comprehension is the section holding your composite down.
That is exactly the role DAT RC Mastery plays: 110 RC passages at real DAT density, 10 full-length RC tests for timed simulation, 30 words-per-minute training passages, and per-question-type analytics that tell you precisely which RC pattern to attack. It complements a bundle like Booster rather than replacing your whole prep. For the fuller comparison, see Booster vs Bootcamp for RC and the best DAT RC practice resources.
A bundle tells you your RC score. A specialist tells you why it is stuck.
Booster is a solid choice for full-DAT prep. Just do not assume that a good all-in-one bundle automatically means deep RC preparation. If reading comprehension is your bottleneck, plan to supplement it. For how to practice RC so it actually improves, see DAT reading comprehension practice.