On a monthly basis, I will review a different set of strings and post my findings along with a small soundbite for your listening pleasure. Hopefully, this will give you a basis for your string choices. I have a "bucket list" of strings that are in the review queue. Please, feel free to let me know which strings you'd like to see in my reviews.
String Bucket List:
Newtone Heritage (Current Review)
Newtone Master Class
GHS Vintage Bronze and Signature Bronze
Martin SP Lifespan and Monel Tony Rice
John Pearse Phosphor Bronze and Silks
Cleartone Treated
Ernie Ball Coated Slinky and Earthwood
Thomastik-Infeld John Pearse Folk, Spectrum Bronze and Plectrum
and last but not least,
Elixir HD
For the first review, I'm copying a review that I did for the Newtone Heritage Series Strings. I've recorded some basic chords using a CAD U37 microphone.
NEWTONE HERITAGE SERIES (.012-.051, Medium Gauge)

I've been intrigued by these strings and the praise they've garnered. So, I put these strings on the guitar about a week ago and I think I'm in "string love". For those of you who have vintage instruments, or instruments that you would like the sound of heavier strings, yet want minimal stress on the instrument, these may be the ticket.
I have physical challenges involving my hands, so playing a guitar with a lot of string tension and heavy gauge strings, can be difficult. The Newtones are very easy to play; it's like the instrument has been tuned down across all of the strings. I wish I'd known about these strings before I had calluses. I played a couple of pieces with drop D tuning and even with the reduced tension, the strings sound great.
I'm still searching for all the adjectives that describe the sound: rich, complex, ringing but with deep, rich, bass, lovely bell-like mids, bright trebles (but not BRIGHT). In addition these strings have that "vintage" sound Which I suspect many of you are after. They have the appropriate sound for "Cannon" or "Fur Elise", "Blackbird", or the blues such as "Georgia on my Mind" (I'm eclectic). The Newtone's ring out loud and clear; there is nothing muffled about them, so they afford you the well-balanced tone for which the OM is known.
Good:
What can I say?
1. Reduced tension for those with physical challenges or older instruments.
2. Very quick break-in: These puppies held their tuning the next day
3. Minimal daily tuning tweaking: They seem to react predictably with the change of weather, humidity, etc.
4. Minimal finger squeak.
5. Did I mention SOUND!?: I love the combination of richness and complexity, combined with the slight vintage tone.
6. Price. This made both lists. I think they're worth the money. I've spent much more on strings in which I've been disappointed.
Bad:
1. Fingers get dirty, and I really don't like dirty fingers from guitar strings (I wash my hands before picking up my guitar, always). I've minimized this by cleaning the strings before and after. The problem is lessening, as the days go by.
2. Price. Some might think the price is high. I would argue that I've spent more than $13 on sets of strings that I've disliked.
Since there are many upcoming string reviews, I won't say these are my absolute favorite, but they rank #1 right now. I'll monitor how long they last and update this post, because longevity is the last criteria.
Longevity:
So far, I rate the strings high on longevity. They've been on for about 6 weeks now and are played on average 2 hours per day. I've not noticed any undue wear; the tone is as good today as it was when I put them on the guitar. After 6 weeks I no longer get dirty fingers from these strings! This is a huge bonus for me since I deplore guitar string junk on my fingers. The Newtone string set is effected equally, per string, when there is a change in humidity.
NEXT MONTH: GHS VINTAGE BRONZE (I've heard good things about the GHS Vintage Bronze strings.)