I’m a big fan of Intellijel and agree with others - if I had to have only one brand, it would likely be them. The general, simple to use UI is definitely key and their cases are fantastic (I have two 7Us).
Have to admit that I have moved away from the digital modules with screens. At one point had 2 Plonks and a Rainmaker, all sold - but this is more a reflection of me as their UIs are well laid out. Rather I have sold off pretty much all modules I had that have screens of any form, including an ER301, General CV etc.
But I love Atlantis, the Dixies (have 5!), the ADSR (have 2), Tetrapad (can’t wait for Tete), uVCF, Polaris,
Do wish there was more 1U compatible modules out there.
I also think Intellijel need a shoutout for their customer support and engagement with the community. I have had to send one module back for service, and this was well managed. And Danjel and others are frequently in the forums. They do what they say, say what they do. I’d never hesitate to recommend them to anyone new to this. You can’t go wrong!