Not to nit pick but it went 11-48, 11-58, THEN 1100.... The 1100 is a classic design and they are still as functional today as they were when they came out in the 1963! They are soft shooting, you can find parts / barrels / stocks anywhere and they point very well. They have their issues ("O" rings as an example) but those issues are very well known and very easy to overcome. There are a ton of them on the market and you can usually find a clean one for $350 - $400 bucks. That is a great deal for the money!
Are modern designs better? I would say that they are but that does not in any way diminish the greatness that is the Remington 1100. Just because it's an older design doesn't mean it isn't any good... After all, a lot of people on this forum shoot 1911's... Last time I checked that design is a lot older than the 1100