I like it!
I've rebuilt the Razorleaf a few times, in my various play-throughs. It makes a great base ship, easily modified to be a real workhorse.
In my current play-through I started by improving the Frontier. It wound up like this, as a Class B ship. Nothing too fancy, but it does the job.
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After getting the Star Eagle from the Ranger quests, I decided to re-build it next, and I've been using it for while. I finished the Crimson Fleet stuff with it, at which point it looks like this. It is perhaps the ugliest ship I've ever built. But I like the interior layout pretty well, and it kicks butt in combat.
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Ship building in Starfield is one of the high points of the game. It's a lot of fun, I think.