I really hated it when Microsoft ditched it from Windows 8 (and later). To be honest, I thought the new Metro Interface looked really depressing to me and wasn't really all that customizable.
The Windows 95/98/ME/2000 (up to Windows 7) style with the gradient title bars (and really its overall presentation in general) made alot more sense to me than what they did in Windows 8. So, on account of that, your True Classic theme is definitely a welcome addition to Windows 10.
I didn't really have any other issues with the OS (besides its wonky start menu which could easily be fixed with Start10, ClassicShell, or some other alternative out there). But, its depressing Metro Interface kind of dampened me everytime I looked at it.