I have attended workshop by Arktech solution. I have a very bad experience. The things taught are all fancy stuff with no indepth understanding. The people who teach are college passouts and have no expertise. The worse thing being the pcb boards provided are of pathetic quality and do not work reliably after the workshop. Similar problems were experienced by other friends of mine. I think people into this workshop business should outsource the pcb jobs to good manufacturers or make good designs themselves.
I recommend people not to waste money and time by getting carried away by fancy stuffs taught. As they have no value in the industry. If it was for hobby or getting started go for DIY kits or make the best use of your college labs.