Been using JTL 15mbs for a year or so and i can confirm that its very reliable, for me. 
Altho' if their fiber cable to your route has issues, then that could be the reason for your major downtime. But you need to confirm from other JTL user in your local to see if they share your issue. 

Bravo

On Oct 28, 2015, at 12:23 PM, David Njuguna via skunkworks <skunkworks@lists.my.co.ke> wrote:

Are we the only ones finding JTLFaiba completely unusable? The link is down like 60% of the time. To make it worse its on and off so you keep thinking/hoping they have fixed the issues.

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