Perfectly solid choices. The G&G Raiders have long been regarded as decent guns, although the price crept up while other brands added features. However, what actually matters isn't whether a gun has a rotary or dial hop, but how well it works, and the G&Gs tend to work very well indeed right out of the box. They do indeed feel great in the hand as well.
One thing, the Specna will come with two springs: an M120 which is too spicy for UK use, and an M90 which will be fine (although perhaps a little lower than might be ideal for woodland). A decent shop will have fitted the M90 rather than sending you home with a hot gun. If Santa checks the box, he should find another spring in there, and a packet which (if I remember correctly) is marked M90. If the packet hasn't been opened, then the M90 is in the packet and the M120 is in the gun, and needs swapped out. If the packet is opened, that suggest the M90 is already in the gun.