I did the exact same switch. GSR200 to BTB405. The BTB felt a lot easier and more comfortable to play, and a much better range sound (in my opinion). The pickups and preamp are better than the GSR for sure, the GSR not having a preamp at all. If youre not too sure about preamps do a search on the forum, theres a lot of info and its something you can swap out at a later date.
As a beginner its all about finding an instrument that feels comfortable, so Id head into the shop and try it out. If it feels good snap it up.
Thanks for that info. I will do some searching to read about preamps . So would you say that 250 would be a good, bad or about right price?

Congrats with that beauty!