I have a 2003 Four Wheel Camper "Hawk", which is their full size 6.5" long model. It sits in my 2015 Ram 1500 Ecodiesel 4x4 crew cab. It is a pretty basic equipped camper with an ice box fridge, 2 burner propane stove, 20 gallon fresh water tank and manual pump faucet into a sink. It has the couch type seating that pulls into a bed and the queen size cab over. I have the cold weather extra insulator and also had them install a one piece roof and roof lift assist a couple years ago. What it is missing is a heater and a john. Both things that can easily be substituted (warm sleeping bags and the great outdoors).
>>> 1) just the 2 of us is there enough room for us for weekend/ week long camping.
Yes, absolutely. I have had up to 4 people in mine. Usually two sleep on the cab over bed and two sleep in the seats on the lower deck that can be pulled out. If you are only two people you will be able to leave the seating alone and use some of the floor for extra storage.
>>> 2) Pulses or miniuses over a trailer type?
Plus:
a) You can travel much faster. A pop up camper like mine can go 90 mph safely albeit not legally in most places. I just got back from a trip through NV that has 80 mph speed limits and I went 85 mph most the way. Even heavy winds don't matter much. Note that I said "pop up", if you have one of those rigid campers, it is a horrible sail in the wind and I would not recommend it. In CA it is even more pronounced of an advantage as trailer speed limit is 55 mph and the cops are pretty strict about it. If I can go 75 (speed limit on interstate is 70) vs 60 mph, that is an HOUR savings for a typical 300 mile trip.
b) Like others mentioned, with a camper built for 4 wheeling (needs to be welded aluminum frame construction, a lance will be rattled to pieces after the first outing) you can go places a trailer will never go. This means camping ALONE and not next to someone with a 30 foot trailer and two generators. This means camping right next to the 4x4 accessible fishing hole where others have to go take a day trip.
c) Pop up campers will use less fuel than towing a trailer. I get 20+ mpg (Ecodiesel) doing 70, at 85 it is more like 18.
d) You can tow a boat, toy trailer with dirt bikes etc.
e) A good 4x4 camper will hold its value unlike most RVs.
Cons:
a) It is cumbersome and not standard practice to unload a truck camper when using it for camping. My camper can actually be unloaded pretty easily when I travel with the lift legs attached. Main challenge is that you can't lower it all the way to the ground. People carry a couple boards you can stand up on their side in an "X" shape to lower it on or you can just bring your chainsaw and cut a few logs instead. This would only be something if you set up camp for a week and needed the truck daily, like a hunting camp.
So, if you don't unload and need to drive, it means stowing everything where it doesn't bounce around and pulling the roof down. Roof up / down is only a matter of a minute, literally, but stowing things can be annoying.
b) You can't get a decent bathroom in any 4x4 capable camper. All you will get is a camping porta potty which I find gross to have to clean up. A trailer will likely have a real toilet that you can empty and flush in a waste station. Same with a shower. The camper may have hot water but you will shower on the outside with a curtain etc.
c) A trailer is easily stored / unhooked. A camper takes more time to unload. I can do it in 15 minutes but it still is annoying.
>>> 3) would you recomend
For my uses a trailer is not good. I am working full time and like to get there and back quick, I hunt and fish and want to get away from other campers, I like to camp "dispersed" away from people even when on a road trip, just find public land and spend the night. Nobody in my family, including women need a bathroom or a shower. We have done 2 week trips and just hit a developed campground every few days when we need to freshen up. I would absolutely recommend if you have similar needs and likes. For me camping is about going with less but I don't want to sleep on the ground either.
I also looked at the Sportsmobile type van setups. Those are a LOT more expensive and now your vehicle is purpose built. With a truck camper you can have a truck in 15 minutes and can replace the truck or camper when needed.
When I do this again - retirement - I will get a 1 ton truck and an Alaskan brand camper with the hard sides that has more amenities, specifically heat, as I expect to do more exploring in colder climates with that.
Couple links from threads I started:
http://forums.pelicanparts.com/off-topic-discussions/780091-any-truck-camper-guys-board.html
http://forums.pelicanparts.com/off-topic-discussions/870386-ecodiesel-3-0-v6-ram-2.html
Great forum for 4x4 campers:
https://www.wanderthewest.com/forum/
My setup in the wild:
Have fun looking and let us know what you decide.
G