I love jebao, used their pumps for the first 5 years in this hobby...but I wouldn't trust my tank to them with a doser. From my history with their other equiptment I woulda assume their QC is much lower then most companies. Acceptable failure rates to them may not be the same for us.
I personally use 2 GHL Doser 2.1 after switching from Kamoer.
If you want the best, go GHL. If you want the cheapest, go Jebao. A nice middle ground of cost vs. dependability would be Kamoer
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