Looking at a few on Flea Bay - seem to be all much of a muchness in terms of spec and claimed increases.

Anyone got one they'd like to tell me about?

Will be going on my 2.0 JTD Scudo ........

Yes, I like mine, well worth the money and easy to fit.

Check this out.
https://www.fiatforum.com/stilo/247489-eventually-decided-try-tuning-box-im-impressed.html

Cheers for that - exactly the ones I've been looking at.....

Did the guy ever sign up as a Trader?

I dont think he did, can't say I've checked.

tmc tuning boxes are traders, there are a lot of reviews of their boxes on the forum

http://www.tmcmotorsport.com

https://www.fiatforum.com/tmc-motorsport/211485-tmc-motorsport-tuning-boxes.html

can you get better mpg with tuning box

i have a tunign box for my 1.3 mutlijet grande punto and i think i may be 1-3mpg better off, as before if be averaging just under 60, and now i avergae just over 60. it puts a fair bot more power to your engine to

i have had very good experience with ItalianSpeed. i went for their box as it was cheapest, gave the best gains and its keeping things italian. Their customer service is excellent too.

They also do one with remote control so you can turn it off and have standard power.