I think everyone here knows my thoughts on Hoverfly. I love my 2 HFP boards, nothing else I have tried comes close.
Basically there had been teething problems early on as things have developed and some users have had battles but 2 things have really stood out for me, one is the guys at Hoverfly are genuinely great people who want to produce great products and do their very best to provide great support. Their recent RMA system for helping with faults or problems has been for me absolutely 1st class. They have addressed the issues they had in the past made huge improvements to their system of dealing with problems and I believe are heading in the right direction.
Secondly the hardware is superb and I still havent flown anything which is as good as my HFP boards. The only FC of any note that I still have to try is the Wookong.
With respect to price the HFP is no more expensive than any other controller when the list of features is kept in the equation. I just did my first fpv flight and the built in OSD was extremely helpful, the gimbal contols are also built in and they have sped up those controls. They were noticeably faster than my NAZA FC and also the CC FC. Auto Level works extremely well and the latest firmware has improved the HFP flight quality as well. A little while ago one of the CC developers watched another user flying his HFP and made a comment about not seeing any other FC that could descend as smoothly.
Another important feature is the fact they are as close to plug and play as you can get. My NAZA was very user friendly and close to how easy the HFP is to set up. For basic flight you only have 1 setting to get right.
I have only ever had one fault with my HFP which resulted in a crash, that was 8 months ago now and the issue in the firmware was resolved for me within a week. Another issue recently was a minor twitch in AL mode which was fixed very quickly.
I think the HFP board is superbly designed and beautifully manufactured, no hardware issues for me at all and the firmware releases keep getting better. I was very frustrated for a while a few months ago but waiting for things to come right has been very worthwhile. Right now I have no need to try another FC and one day when HF bring out a new version of the HFP ( btw I have no idea if HF have a new version even in the planning stage) I will be first in to buy it.