This PDF contains 29 drones presented in the same style as the vehicles in Arsenal. I believe all the old drones are from previous Shadowrun editions.
Only 8 of the 25 pages contain drone information. The rest is the cover, a page of fluff, and drone stat sheets (2 drones per page).
There are mini, small, medium, and large drones (no micro). Approximately 60% are aerial and the rest are wheeled/tracked. Many have greater firepower capacity (more turrets and/or reinforced turrets) than those in Arsenal. I haven't tested them in-game yet but their obsolencent or obsolete qualities should keep them in check.
Overall I am pleased with it and will find plenty of uses for this product. The PDF $6.95 cost averages out to 24 cents per drone, which I think is a little steep. Otherwise, this is a good product.