Yamaha THR30IIW Black

Let me start by saying that this is the first modeling amp that I've heard, which kinda comes close to the tube sound and feel. Kinda. Don't expect something that could fool you for a tube amp in a blind test, but at least Yamaha's Virtual Circuitry Modeling technology is much much better than Boss' Tube Logic for example, which I find terrible.
Pros: It is wireless (we'll come back to that), battery operated, it has a warm clean sound.
Cons: The effects are extremely limited and poor, the app is the worst I've seen ever (feels like it was made in 2010 and never updated since then), and it's EXTREMELY expensive.
The battery lasts around 3 hours. Which I think is pretty much ok.
It is a "coffee table" amp that you can move around the house and get some extra playing time or practice time when you just don't feel like sitting at your desk with your standard amp. Which I think is pretty cool. If having it makes me play 20 minutes more than I would without it, then it's worth having it.
Now let's get back to the wireless part. This is supposed to go hand to hand with Yamaha's YW10T Wireless Transmitter. It is sold separately (which I think is unacceptable when the amp costs 500 euros).
My suggestion is that you should absolutely avoid the YW10T. It is a transmitter that has no compatible receiver to pair it with (or at least Thomann does not sell one), apart from the integrated receiver that is built inside the amp. So if for example you want to place a pedal or a looper or whatever in front of the amp, you forget about going wireless. You have to use a cable to connect your guitar to the pedal, and then you can plug the YW10T in the output of the pedal in order to connect with the amp. Which I think is pointless. Being wireless means not having a cable plugged in your guitar. And you cannot have that luxury with the YW10T unless you connect directly to the amp.
Considering the 120 euros of the YW10T, I suggest you buy another wireless system that has both a transmitter and a receiver (100-175 euros, there are many options) and use that instead.
If we add all these we come close to 650 euros which is around 100 less than a Blues Junior for example. Which I consider to be a really good entry level (or not...) tube amp. Not comparing apples and oranges, just giving an example about the price.
So is the Yamaha THR30IIW worth the 500 plus the 150 for a wireless system?
If you want a true modeling amp, that can work wirelessly, with many effects, with a modern app that gives you a ton of choices etc, absolutely not.
If you want the equivalent of a tube amp and want to use it as your primary amp, absolutely not. Throw a 100 more and buy a tube amp.
If you want the closest thing to a tube sound (though still pretty far), the ability to play wireless and you don't really care about the app and effects, then maybe yes.
I belong in the third category, that's why I am keeping it.
But I would never consider it to be VFM.

It happend to me atleast 3 times when I configure my presets and play some time with the amp and sudenly it won't turn on, just lid the power button red for a sec or two and it turned off itself. No power issue, just firmware/software issue, amp has to be reseted so I lost presets but it worked again. Till the last time, when I played as usual - no presets, I gived that up - and after session I normally turned it of. The next day it cannot be turned on - no red color lid on power button what so ever. It only lights up for a minute or so with green color when I connect it to adapter, but since it is fully charged, button lights just for a while. It cannot be turned on, reset did not helped.

Sound is good, overall it is good. But firmware is a mess I think and I have trust issues with this unit.