Some of my friends IQAS timelines:
Friend 1:
Package Sent:14 Apr, 2017
Package Delivered:17 Apr, 2017
Acknowledgement Email:3 May, 2017
ECA Soft Copy Received:Jun 9, 2017
Friend 2:
Package Sent:8 May, 2017
Package Delivered:10 May, 2017
Acknowledgement Email:31 May, 2017
ECA Soft Copy Received:Jun 23, 2017
Friend 3: (He did not send passport color copy so IQAS requested passport color copy again)
Package Sent:28 Mar, 2017
Package Delivered:3 Apr, 2017
Acknowledgement Email:4 Apr, 2017
ECA Soft Copy Received:30 May, 2017
Friend 4:
Package Sent:7 May, 2017
Package Delivered:12 May, 2017
Acknowledgement Email: 8 Jun, 2017
ECA Soft Copy Received:
3 Jul, 2017 [update]
Friend 5:
Package Sent:7 Jun, 2017
Package Delivered:12 Jun, 2017
Acknowledgement
Email:Jun 23, 2017
ECA Soft Copy Received: waiting
Hope it helps