What I think is going on here is the approach & motivations rub some people the wrong way. A frame is a frame is a frame. It is little more than scaffolding to hang parts on. Given modern manufacturing, it's pretty darn hard to find something so low quality that it'd either be dangerous or wouldn't work. This frame in terms of stiffness, lightness, and execution made any time in the last year or 10 would be the province of artisan craftsmen 40 years ago if the manufacturing & methods even existed...& now it's considered common, low class, not even worthy of respect.

Op don't buy into the hype. You don't need Ultegra or Dura-Ace to have a quality bike or a fine cycling experience. In fact, depending on your use case, fancy components with a recognizably high end label might be a liability. Few people own Lamborghini's. Even fewer Lamborghini owners use them to go grocery shopping or commuting. A Camry is good enough for most uses.

Tailoring a bike to it's intended use is part & parcel of what it means to customizing a bike. You are tailoring a bike to obtain the greatest value possible, not the cheapest price possible. Good. Is Acera the best possible derailleur available? No. Will it hold adjustment better & last longer than a Tourney? Absolutely. The single digit number of dollars in difference will pay for itself the first bike shop tuneup avoided...& you'll know how to do the work. That's what you are buying here. Not parts; Know how. I think that's what some other posters are missing.

Carry on with your Camry build. The knowledge gained will be priceless.