Hi, these are details for my wife:

Country applying from: Nigeria
Type of visa applied for:Settlement-Wife (non-priority)

13th February 2017 Application submitted online
28th February 2017 Biometrics done at TLS Abuja
10th March 2017 Supporting documents arrived at Sheffield (no confirmation email)
26th May 2017 TLS updated UK Visas & Immigration has now assessed your UK visa application and made a decision (No email from UKVI)
26th May 2017 Documents returned to me (sponsor)
26th May 2017 TLS updated application ready for collection
31st May 2017 Wifey collected passport with 33 month vignette visa dated from 31st May 2017

Note:
1. The 12 week wait is painful but it's unavoidable, if you can afford priority, I'd suggest you do that to avoid the nerve-racking wait.
2. In addition, the 12 week wait for this visa category begins from when the supporting documentation arrives Sheffield and not when the biometrics has been completed.
3. We didn't submit NARIC Statement of Comparability but her LL.B and WAEC and this was miraculously considered. I'd advise anyone putting in this kind of expensive application to do proper research instead of submitting the application unlike us who were recipients of God's mercy.