Marshall
If you have a small studio like me, then these are amazing. The big advantage is that you can listen nice and close without compromise...but as others say, it depends on budget. And room size. And I have to say, the biggest single thing that has improved my mixes was spending about 6 times what these speakers cost of good acoustic treatment. 
 
https://www.ikmultimedia.com/products/iloudmm/

Excellent advice.

If u have sub Adam f5: are great

Hi. As others have mentioned, it comes down to budget first and foremost. 
It (IMO) also comes down to treatment and where in the room they will be.
If close to a wall, perhaps not go for back ported design.
The size of the room will also have a saying.
Bigger isn't always better 
All the best.

This is going to go down like a Led Zeppelin, but unless you're in a million dollar studio, which has been treated...you're wasting your cash on speakers. I mixed this Listen to Sonata No.7 Organik Mirrorball Blues by A Techno-Romantic #np on #SoundCloud
https://soundcloud.com/aa...ganik-mirrorball-blues with nothing more than AKG 712s, ok so admittedly the second best headphones in the AKG range, but still headphones. And they only cost 500 bucks Oz. I do have a set of passive Tannoys, but there not even set-up at the moment...I tend to test mixes outside of my headphones using my Bluetooth Harmon Kardon speaker, again...a very good speaker. I also use my laptop speakers, and my phone speakers...this gives me a good idea of what a mix will sound like on a cheap DA converter...something that is very important, and probably not very well understood.

Ben

without a budget,
you are all barking up trees.
 
wait for the OP to update

Yes, the wrong tree is prolly getting the noise
 

BenMMusTech
...unless you're in a million dollar studio, which has been treated...you're wasting your cash on speakers. 

So very true. Of course, that's assuming the OP already has some speakers and just wants to step up a notch. But maybe he's been mixing on headphones due to a lack of proper monitors. If that's the case, then a pair of Behringer Truths would be a significant improvement, acoustic treatments or not. Otherwise, you're right: high-end monitors and subs would indeed be a waste of money.

In the fall of 2016 I was searching everything under $600/pair.  I ended up with JBL LSR308 and then left a detailed review on the Sweetwater site called "A Whole New World".  If I had 10 times that much to spend then definitely Focal monitors.

JBL LSR305's here. Love em'. If I had a larger space I would opt for the LSR308's. If a tornado comes and takes my house I won't cry if they get destroyed. At that price just go buy another pair.

The Adam 2-way monitors are scooped. Those folded tweeters start too high and require
a crossover frequency of 3kHz, meaning the bass units have to try cover the gap in the middle.
Scooped sounds great at first but eventually you notice you cannot hear detail.
 
Also, the amps push the small drivers lower than their natural resonance point
but they run out of steam with even moderate low sines (TR-808).
 
And finally, if the boxes are on all day (mine idle mostly) the plastic covering at the back edges peels.
 
I got a pair based on reputation. With time their limitations became clear.
I now just use them occasionally to hear what my material would sound like through bookshelf loudspeakers.