Hi Petzdelux,
my experiences with FP2 are o.k. using it in a way I described in my answer to a frustrated user. Considering the two year warranty, I can recommend it for those being satisfied with the midrange level phone at a high level price considering the fairness and environmental matters. If you encounter a hardware issue, don’t hesitate to call Fairphone support and insist on repair or exchange.
And btw., nobody knows the percentage of phones having the issues mentioned in this forum, but considering an amount of more than 125.000 pieces, there must be a majority of customers who are satisfied with their device.