I went from a carbon hardtail to the Anthem and it's been the perfect choice for me. I picked up a nearly new X4 and then upgraded it to X1/2 spec mainly with parts transferred from the hardtail plus a few extras like a Fox Float RPL.
I mainly cover byways, bridleways etc locally in Co Durham plus N York moors and Yorkshire dales. It's the perfect ride for these sort of routes. It laps up moorland trails, rocky byways etc.
It's like a hardtail on the climbs but with the bonus of some rear wheel travel to soak things up and aid grip when needed. It's made me faster than the hardtail and I get back from rides feeling less fatigued courtesy of the rear suspension.
I personally love it as it's perfect for 90% of the rides I do. It copes well with the odd trail centre trip but if I start doing significantly more visits to trail centres etc I'll probably get a 140mm bike too.