UpShift is far from perfect, but I think the most negative reviews here come from net bad hires with mismatched expectations.
Resistance from the top to some changes. Partners challenged proposals to transition to web design-focused software. It would expectedly cause growing pains in adapting to using different apps between print and web, but using InDesign for web design felt antiquated compared to using any of the modern web design apps.
Resistance from design team to some modern practices. There wasn't a lot of focus on adapting for accessibility after the news and client wave of ADA/WCAG issues. It wasn't that hard to figure out how to create and measure web and design items for accessibility, but there are missed opportunities on simple items text contrast over background colors. Accessible websites might seem like overkill, but it's only a little more research and tweaks to the way websites are built for a characteristic that makes the work much more professional and into world-class.
Resistance from web team to more modern practices. Limited use of code repositories resulted in some in-house plugins and redistributed code being difficult to track across different projects.