As above on quality and sound and everything else. I have four of them, S2 fretless 4, S3 fretted 5, S2000 and Electro 2. All wonderful instruments. The necks are to die for in my opinion. That's what first attracted me to them. Love the shape and feel. The profile on current Status necks is very different to the original Series II/Series 2000.
Neck thrus are noted to have quite a bright sparkly tone with bolt-ons having a slightly warmer tone, as told by Mr. Green himself. Difference in sustain between the two is negligible. The Stealth is a different beast again. Moulded graphite with a rigid foam centre. I believe they have a very sparkly tone.
They are great instruments and you can buy with confidence. Few regret their purchase and those that do probably can't see past something beginning with F.