Daddario NYXL1164

I was very impressed by these excellent strings. And I can understand all the hype around these strings.
First thing that I?ve noticed immediately is that the strings are noticeably louder than other strings I have had used before. And it is noticeable both playing unplugged and through an amp. I find it good because it gives you more dynamic range and can be good for hard picking players.
The tone is crystal on cleans and very punchy with great presence and good sustain. This probably is the best tone I found so far.
This seems to be a hybrid set of strings, meaning, the bottom strings are light and the top are from a heavy set. This means that you get the best of both worlds because you can have a more balanced set for both string soloing and especially bending and chord playing for heavy rhythm. The great benefit of this hybrid set is the ability to tune your guitar down without losing tension too much which is hard and a can cause problems with thinner string sets.
Strings are strong and I bet they could handle even using with floating bridges without breaking. The only thing to bear in mind is that you might adjust the nut to make these set sits perfectly as it has quite thick bottom strings.
They are pricey to be honest but loudness, punch and clearness makes them worth its money. They last quite long and they are strong so you can change them not so often than other brands strings. I definitely going to use this D'Addario NYXL string set from now on.

Just got this set for my Schecter Hellraiser Hybrid PT-7. As I don't have much experience with 7 strings, I usually buy different sets of strings from different brands featuring different gauges so I can have an idea.

I finally had the chance to restring my guitar and tried this set. First, I went for A standard. However, I did not like the tension so much.

After having tried this tuning with NYXL 1164, I decided to go back to Bb standard tuning and I must say I have been really enjoying playing my 7 string with this tuning and tension.

It's really inspiring to play and these string absolutely sound great.
One thing regarding the price tag though:

Although these strings are pretty much priced as premium-ish, I think they are not so different than a regular set of strings.

They immediately start changing colour and I don't see why these are priced so high. Maybe it's because the Daddario brand's logictics, but it doesn't change the fact that they are a bit overpriced for what they offer.

I still recommend anyone who is looking for 7 string guitar strings, especially for lower tunings.