Nicely modelled bases, & it's great to have a variety preset to the right sizes - I have some monsters which have been begging for unusual size bases to match them. They're a good shape, & should blend nicely with bases from pretty much any other manufacturer. The only thing that I can think would improve them would be if the top surface were slightly sunk a little, leaving a rim perfect for containing any base modelling - Green Stuff, sand, etc. However, you certainly can't argue with what you get for the price!
Kudos to Rocket Pig Games for a quick response to issues: after obtaining this product I could only see/download the Base_EndCube file. Within hours of being informed, RPG had re-uploaded the file containing all the bases, which I was able to successfully extract & start printing.
Overall, a very nice addition to an impressive new line from this new publisher.