ZT Lunchbox for modeler - Opinion?

It slipped my attention... so far.
There is this little box ZT Lunchbox that gets very good reviews everywhere.
Do you have any experience with it with a modeler?
The small size is very interesting for me (ok, I admit I started another thread about small woofer frfr amps some days ago, and I did not mention it).

My main question is: if I use a modeler (RP500 in my case), with the amp and cab models enabled too, will I get some good tones, that can be sent to a mixer too (without a massive eq difference) through the amp/headphone out of the Lunchbox?

 

As far as I can see, there is not a line in or a return/main in. There's just the ordinary guitar input.
And I read that there is an Aux-in, but it skips only the first gain control (of the standard guitar in) while the tone control affects it too.

Some things I like (in theory) of this little amp, is that there is a separate switch to turn off/on the speaker when you use the headphone out, so it means that I can still use it as a monitor while I use the line out too (into the mixer) and that in case it can work as a real guitar amp. But, yes, you're right, I'd like to use it like a frfr amp, too, as a monitor (of my modeler) for the tone going into the PA... I know, I want too much.

 

I got it!
The first impression at home was of a weak and cold amp (considering on the contrary the reviews I read), that maybe could be nice as a personal monitor for the practice room, and the stage. Anyway, at home, I was disappointed.

Yesterday night, for the first time, I tried it during the rehearsals with my band (folk/country rock) and it was perfect! I love it. Now it's honeymoon period.
I put it on a table (about 1 meter from the floor) near the mixer, and about 2 meters (or maybe less) from me.
Even if the amp and cab models of my RP500 were enabled, for me the tone was very good, both from the Lunchbox and from the mixer (I used its headphone out at max volume to go into to the mixer). I used mainly the clean Vox AC15 and Fender Tweed Deluxe models, with some overdrive pedals sometimes (mostly the DOD250 of the Digitech modeler).

As to the tone, the small 6.5" speaker enhances the mid frequencies just a little, but in my opinion that characteristic is good to hear it better in the band context (I mean as a monitor for me), and anyway it is neutral enough to the extent that the tone going into the mixer and into the bigger powered cabinets (used for vocals and the other guitar player with semi-acoustic guitar) was very similar. So I'd say that it's perfect to tweak a nice tone to be sent to the PA.

My guitar has low-output (hum-cancelling) single coils. If I put the guitar directly into the amp, to be honest I don't like the sound very much. Even with the gain at maximum, I do get just a little overdrive (if any), and the loudness is not that strong. What's more, its tone for me is a little "cold" and "flat". But this is even better for my use with a modeler as I said earlier.
So, it seems that - for now - I have found a very portable, practical, tuneful and "strange" kind of FRFR. Thanks to anybody for the comments!
I think I couldn't use it in the band without the reinforce of the mixer. But I didn't try with an additional external speaker/cab.

The manufacturer support is great.
I sent some mails asking for technical information and I got exhaustive and sincere answers in few hours, from their engineers.
It is important to consider that the first part of production (that is serial numbers like ....1xxx and 2xxx) could have some overheating issues, so that it is better to turn off the internal speaker in case you use an external speaker/cabinet (driven by the Lunchbox speaker out) and till serial number 1xxx some units had some higher noise/buzz level. This is an information you will find on the net, and was confirmed by ZT Amplifier too. My Lunchbox is serial number 7xxx.