They are the same basic gun.
My first shotgun was a Maverick 88, vent rib, 28", fixed modified choke. I got it very well used (still have it). It is major ugly. It has a couple of features that make up for the ugly. It is absolutely reliable, and it shoots. It will break clay as well as I can (which is not saying much). For the pittance I could get for it to trade up, I decided to keep it.
The only Mossberg I have to compare it to is a 20" 500 with a 7 shot magazine. I bought it for home defense purposes, but have used it for 3-gun matches. It also is absolutely reliable, and shoots well for its intended use (cylinder bore, 20-25 yds).
The tang safety on the Mossberg is a nice feature. It depends on how important $50 is to you and what your intended use is. Consider that $50 is the price of 10-12 boxes of ammo. The difference between $100 and $150 is substantial, but the difference between $200 and $250 is minimal when you consider a lifetime of use.