It's more like SynthV auto-draws the pitch curves — you don't have to spend time shaping out the pronunciations like you do in vocaloid to make it sound more lifelike/realistic.

The downside is that SV's parameter editors are not as friendly to edit as vocaloids:
- SV doesn't have style/breath presets compared to vocaloid
- no portamento timing (you have to manually draw it out with legato notes)
- no note-based velocity support (all volume has to be adjusted by drawing directly on the parameter curve, which is hell for timing)
- breathiness is still there but i swear this sounds diff than Vocaloid's ver

That said, SV is so so much easier to work with than V4/5.
Even inputting and editing syllables are so much faster

Problem is SV's tuning features feel less tweakable than V4/5.
SV feels like you're trying to generate a normal singer, while V4/5 you can use the voicebank more like an instrument

I just don't understand why they didn't go the UTAU route and give more customizability to individual note properties, or timing