What wheel are you coming from barmyllama? I made the jump from the G25 but not all at once. My shifter was knackered so that got replaced first with a TH8 RS.
Then I got the CSP v1 as I was told that they would bring down lap times. And to be fair, they do. Once you get the load cell and the resistance on the pedals how you like them you are so much more consistent (on iracing anyway). I held on to my wheel for a long time before changing it for the CSW (maybe 3 months after they released it). The trouble this that the G25 is very good. I gave mine to a friend so I still get to use it now and again and it is easy to see why they hold their value. The FFB 'feel' is really not that different. Of course, the strength of the FFB is 10x stronger if you wish to have it high (hit a landmine and it will do damage!).
The base and the rims are a lot of money but you are getting a quality product. Using the the CSW is all around nicer to use and I don't regret purchasing it at all. I really hope I don't dishearten you from getting it as I love mine. IMO if you love your Sim racing and it is your hobby, go for it! If its just another game/genre you play, don't.
IMO
G25 vs CSP = there is a night and day difference
G25 shifter vs TH8 RS = TH8RS is 10x better
TH8RS vs fanatec shifter SQ = SQ is 5x better
G25 wheel vs CSW = CSW 5x better
The TH8RS to SQ was the same jump as the G25 to CSW. The was nothing wrong with my TH8RS but I wanted the features the SQ had to offer (hot swap from seq to H box). Then when I get it in my hands every shift is very satisfying, it make you feel so much more connected to your virtual car and you start to shift more efficiently because you enjoy each gear change and you take your time. The downside is I paid 200 Euro for it.
Same thing for the wheel, extra buttons, everything is driven by belts instead of gears, feels nicer and it looks the
****. But you pay 700-800 euro for it.
Hope this post has helped in some way
but I'd defo get the pedals first as they are worth the money and be sure to get the tuning kit!
Welcome to the club
Get them pedals, they are the best upgrade of the bunch!