I like it so far, but it's worth noting that at this stage all the cutaways have been massive crowd-pleasers in terms of events and characters featured. It'll be interesting to see how the reception swings when we do one for a less popular character or less dramatic event.
I actually wonder if they're going to be less good in the volumes. For weekly chapters, the result is some truly unpredictable bombshells, you never know what you're going to get in any given issue. But when you look at them in the structure of a collected book the placement feels random. Law vs Blackbeard works well enough, used more or less to gloss over the unimportant details of Luffy's group escaping the Pacifista. If the story was going to more or less cut forward to them arriving at the scrapyard anyway it's a good place for a break. But the end of chapter 1071, for example, with Kid sighting Elbaf's shores and Garp announcing his rescue mission comes right in the middle of Bonney chasing Vegapunk, a scene which picks up exactly where it left off in the next chapter. It's not an organic end of scene change-up like the first one.
Shanks at the end of 1076 is probably fine, it looks like it'll conclude a volume acting as a final scene stinger, but the current run of cutaways comes while several members of the crew are in the middle of active combat, in a scenario that's not just going to reset after breaking line of sight like the one with the Pacifista cop. It's not Oda's writing style to spend 30 pages away from somewhere and have no time passed when the story goes back to it, but I would feel like I'd missed out if we get back to Egghead after all this and find we've missed the end of the S-Bear and S-Shark fights.
The long and short of it all is that it's not where I would be putting cutaways, and I hope the reasoning surrounding that makes sense because so much of that kind of thing is based on writerly gut feelings.