michael
Yup its currently bugged with V8 javascript (CocoonJS) and some Samsung devices (in particular S2,S3 and tab 2/3), its really annoying but I've contacted Ludei and they have said the bug is fixed and updated and there will be a new CJS version in about 10 days.
Luckily it works flawlessly on Samsung S4, S5 and Note 2/3, along with their newer tablets. If the bug killed it on those popular newer devices, I would have committed Seppuku. >_<
So far other devices seem to be fine, haven't received any major crash reports for other brands, unless really old 800 resolution stuff with 256MB of ram, which is way below my minimum spec.
Something I hate with Google Store is that they won't let you specify a minimum spec so you can block out devices that don't meet the requirements.. you have to manually go through the list of 6,300 devices or so and flag each one. Not that I even know most of them and their hardware.