I've been downsizing my collection lately, selling off pieces at a loss to focus on fewer, better watches. That process has clarified what I actually want: good engineering, clean design, and something I'll wear regularly rather than rotate through a dozen options.
My first time seeing an Audemars Piguet in person was a few years ago when a friend got a Royal Oak as a business gift. The finishing was noticeably better than anything I owned. Two things held me back from buying one myself: the price, and the 41mm Royal Oak felt small on my wrist. The Offshore solves the size issue. It's larger, sportier, and slightly less expensive than the standard Royal Oak.
Case and wearability
The model I bought (Ref. 15710ST.OO.A002CA.01) has a 42mm stainless steel case. It wears well on my wrist without feeling too big. The Offshore is chunkier than the regular Royal Oak, more tool-watch than dress-watch, which suits how I actually live.
The case finishing is where AP earns its reputation. Sharp angles, polished and brushed surfaces in the right places, tight tolerances. The screw-down crown has prominent guards that add to the sporty look. It's thicker than the standard Royal Oak but still fits under a casual shirt cuff.

Dial
This Offshore has a time-only dial, no chronograph. The "Méga Tapisserie" pattern is an enlarged version of the standard Royal Oak's waffle texture. It gives the dial depth without adding complications. The hour markers and hands are large and lumed, so readability is good day and night.
I usually prefer chronographs, but I've come around to time-only watches. Fewer things to go wrong, cleaner look. This dial works.

Strap
This reference comes on an integrated rubber strap. I generally prefer metal bracelets, and my Vacheron Constantin Overseas has set a high bar there. But AP's rubber strap is comfortable and looks like it belongs on the watch. The integration between strap and case is well done. I did buy a stainless steel bracelet and it fit perfectly.

Movement
The caliber 3120 is AP's in-house automatic. About 60 hours of power reserve, accurate, and nicely finished. The sapphire caseback shows off the movement, which is worth looking at. The decoration and finishing match what you'd expect at this price point.
Bottom line
Owning this watch has made clear why AP, Vacheron, and Patek command the prices they do. The finishing and construction are genuinely better than watches at lower price points. You can feel the difference.
The Offshore isn't the usual first AP for most people. The standard Royal Oak gets more attention. But if you want something sportier and a bit larger, this is a solid option. It's become one of the watches I reach for most.