Only tried it twice as I ve only bought it and it came with clouds!
However first impressions are amazing!

Really pleased with the performance of the Baader Hyperion. Using it in the Skywatcher 8" Dobsonian. I would definitely recommend the Hyperion.

These two pieces made the viewing experience so much better than the stock eyepieces that came with my telescope.
Tested last night and got great views of Jupiter and Saturn.
Delivery was prompt and items where carefully packaged.
Would recommend FLO and will shop here again.

I have 6 of the Baader Hyperion 68 Degree Eyepieces (24mm is the only one I do not own) and I am very happy with all of them.
I like that they can be used with both 1.25" and 2" focuser drawtubes. Also they provide very nice views and I have a T2 ring which makes it very easy to do eyepiece projection photography.

this my 2nd 17mm hyperion eyepiece the first one got ruin when i tried to fit a fine tuning ring and got dust inside when i tried to rub it off i manage to scratch the lens,be careful when you unscrew it make sure you're in a dust free environment,if you get dust inside it's a nightmare to remove, having said that it's a superb eyepiece i've got the baader hyperion zoom eyepiece easy 5 stars worth every penny

I purchased the Baader Hyperion 13mm on Wednesday 18th 2018.
The speed and service was very fast and professional, i got it the next day.
The only downside is that i haven't had the weather to use it yet to give a review, overall though i can, the lens is definitely in a class of its own when i compare it to the Celestron Plossl's i own, its a giant at the side of them and quite weighty too.
The Baader lens just feels right and comfortable when handling.
It also has a Quality look about it.
As it stands right now, it is in my Skywatcher 300p Flextube just waiting for its first look at the night sky, here's hoping we get a clear one.
Will update more once used more,
Mark

I have a 13mm hyperion ,quite a versatile size as you can unscrew the turret and use as a 24mm 2" ,or buy appropriate tuning rings and adapt to a 9mm or 11mm eyepiece or buy a t-adapter and fix your camera onto the end .well made piece of kit .would recommend

FLO recommended these eyepieces to me, after discussing my requirements. And very helpful they were too.
I bought the 8mm and 21mm to go with a refractor 500mm focal length telescope with a two inch eyepiece 90degree mirror eyepiece holder.
I was not disappointed.
These eyepieces are excellent. Easy on the eye for prolonged viewing, with a massive apparent field of view.
I attached my Nikon DSLR to the eyepiece and got some great images. This was my first foray into astrophotography.
The only problem is that the telescope I have at the present time does not allow the eyepieces to perform to their full potential. So an upgrade is next on the list.

I have the hyperions in 24, 17, 13 and 8mm focal lengths and, in short I find them excellent. I use the 24mm for about 90% of my observing and use all of the ep in both 1.25" and 2" configurations across a range of telescopes. Given FLO prices (December 2015) it is very tempting to fill in the missing gaps (21 and 5mm).
Recommended without hesitation.

This is my impression of the Hyperion used with my Lunt LS35THa with B400 blocking filter.

First off I must say this is a large eyepiece compared to my Meade 4000 40mm and 26mm I have been using for Ha viewing. But don't let that put you off,
The build quality is amazing, Very solid and just feels right in your hand, I love the packaging and the little extras like 2 types of eye cup. 2 types of dust cap.

Visually the solar views are stunning, Every filament and prominence just oozes detail and the image is bright and very crisp, A lot crisper than my old eyepieces even after a thorough clean. The field of view is large enough for the disk to be fully visible without any signs of edge drop off even while wearing glasses. So there is excellent eye relief as well.

I also like the modular build on them as with the optional T-rings and spacers you can do almost anything with the Hyperion.

I can definitely recommend the 24mm and probably the 21mm as well for full disk viewing with the Lunt, It's a brilliant combination.

So if your into solar viewing, No matter what make of scope you have, Invest in one of these Hyperion's, You wont regret it