I'm enjoying this so far. I've bred my starter 'Cuboom' twice now and every time the offspring is able to run unhindered on another type of terrain. My latest one, Edge, is pretty much immune to the negative effects of sand, water (thanks to a fusion with Scullking, aka 'Vaporeon') and snow (thanks to the original offspring 'Nanaki' being fused with that wierd ice hedgehog thing). And it's level 50 something. It single handedly dominated the whole of Asia and Eurasia. I'm in Africa at the moment though. It's not so good on grass. Thankfully the level advantage seems to carry me through most stuff so far.
Graphics do look a bit last gen, but that doesn't bother me. I still play the original Starwing on my trusty SNES, graphics are not a priority for me. Would've been nice if the monsters made any sort of sound though. Presentation maybe not so good, but the gameplay is pretty fun, if better in short bursts lest it get repetitive.