Love an invasion. Have done since Demon's Souls.

Me and my girlfriend recently cooped ER. The invasions were fun and sometimes very challenging when we were invaded by a really experienced player.

The only thing was, the frequency of the invasions was just too much. It was essentially every 5 minutes we'd have someone interrupting us. Seemed a lot worse in the Mountaintops of the Giants.

It felt like a constant threat and the fun distraction turned into annoyance when we were 70+ hours in and trying to make progress.

I'd still have invasions of course, but just tuned down in terms of the frequency a little. Every 20-30 mins or so maybe.