I have had a Pro 7 since May this year, having upgraded from a Valiant 380 (not the best at all). I have been more than impressed with my Pro 7 (420). It has a 40hp Honda 4 stroke on the back and is fairly quick with 30knts top on the GPS. 28ish 2 up.
For comfort your only looking at 2 people in the chop but i have had 4 with no issues in calmer waters but whoever sits at the front needs to have a strong back if it is bumpy.
I cannot compare this to other similar size crafts as the only other boat we use is a 5M+ Rib X which is fantastic but at £25k is a little ( alot) too expensive for us.
Very pleased with it in the rough and seems pretty sturdy. I dont feel vulnerable when the wind gets up. I've accidently
stuffed it twice and it was solid.
Just fitted a fixed VHF, plenty of room for other gadets along the top of the console.
Here is a link to a video for you, but it is on flat water though.
The video is from my 420 of another 420....
There may well be other better ribs out there in this range but i can only comment on the 420. Price wise i got a virtually unsued (20 hours) 2005 rib and engine from 2005 and its clean as a whistle for 6k (private sale). Seemed fair to me for what i was getting in terms of being pretty much new as the grey one was bought by someone else for £5900 and is a year older with a engine with more hours on. (trade sale)
Good luck with whatever you go for. Let us know too.