I am located in Australia.
I certainly don't consider myself an Audio expert. Just someone who wanted great sound from a portable device.
When I decided to buy a player, my search brought me to Head-Fi.
In my initial search, I quickly discounted the TP because like many people I thought it was crazy to spend 840 euros on a device with no display.
I purchased both the DX100 and Colorfly C4.
Both had great sound however I prefered the DX100 out of the two. I sold the Colorfly C4 and decided to spend time getting profficient with the DX100.
The DX100 has great sound.
I was just really dissapointed about a few things.
I really loved the album covers but found I didn't like the UI as a whole. It was slow and was fustrating. I also didn't like the fact that it was quite large and got quite hot, not to mention the battery life which wasn't great.
The DX100 is a great device with lots of potential,and in some ways I wish I had kept it, however, it didn't suit my needs so I decided to sell it.
When searching for a high end music player, the TP was being mentioned a lot. I decided to do more research and read all the articles from Charles on his website which impressed me.
I also read this forum from beginning to end a few times. People who purchased the player seemed to be very happy with it and comments from HighFlight, kenman345, Tera-Fi, vert and smial1966 to name a few, gave me confidence to buy it.
My purchasing experience was very positive with Charles. He provided answers to all my questions very promptly.
The player certainly met all my expectations and needs and I have been very very happy with it.
I took HiFlight's advice (reading this forum) and purchased the Audeo PFE-232 Earphones and have been very happy with the pairing.
I also have Westone 4's which I am also happy with but prefer the Audeo PFE-232 which is what I use daily.
I'm not the right person to compare SQ with different headphones as I am in no way an audio expert.
I can only give you my impressions which is that the TP is the best sounding player I have heard and that it suited my needs perfectly.
The DX100 would be a very close second but I just couldn't get over it's liabilities.
I hope this helps you a little.