Mind you I only got my first Colecovision 2 months ago.

I was expecting this to become one of my primary systems.

I was disappointed.

Cons:
Most of the games have a 10 seconds or so delay before you select number of players and/or skill level.
No difficulty switch to change skill level on the fly, you have to reset unit.

Some games require another controller, such as Super Action Boxing (Rocky's) and Baseball, yet others require roller controller (track ball): Slither is only one I know of that uses it.
I hope/assume others do, the above games must use the addon controllers, no option to use the plain clunky standard controllers.
This will add considerably to aggrivation and cost.

Cartridges, if you have to take apart to clean will require you to damage the label to get at the 2 screws, been there done that, but no dead carts so far.

The base controllers actually hurt my hand to use for more than 15 mins, light gloves would probably help and have awkward side fire buttons.
I don't think there are 3rd party controllers for this system even though plug is same that is used on variety of old school systems such as Atari 2600/7800, Commodore Vic-20/C-64/128, etc. I assume because of change in pins and requiring the keypad for selections and some game controls.

The 2600 module if inserted overides the other slot so you have to pull it out if you decide to play a Coleco game and will take up extra space. Can be costly add-on as well, typically going for as much as a cheap 2600 unit.
Also note the 2600 module requires you have 2600 compatible controllers for the games, does NOT use the coleco ones.
[starting to become a nasty money pit]

I got this cheapo feeling about the Colecovision except for the main unit; I had a broken one and before I tossed it, I stood on top of it and it did not scream for mercy, crumble, or even crack, and I am 6'2", 200+.

Pros: Some Coleco arcade titles made for the Colecovision
are better than ports to other systems, I wonder why? (sarcasm)

Most of the games are pretty cheap and easy to find.

The Atari 2600 module works well, but see above comments.

A broken (electronics inside) unit's casing withstood the 'stand on me' test much to my surprize with flying colors and I even hopped a couple times, although it was an already broken unit, do not try this at home. 8) I also smacked it around quit a bit and hit it with a big piece of plastic about 30 times and only could tell because it made some marks on the labels. In comparison this same piece of plastic shattered an Atari 7800 casing with ease that I also decided to vent on before tossing this also broken unit into the garbage. *again, please do not do this to a good unit, you will be sorry!*

*The piece of plastic used above to wail on the 2 systems mentioned above was a Logitech keyboard wrist attachment that I was also throwing away, it suffered very little damage and I was not holding back at all.
It would have been unfair to use my pick axe. 8)

Overall: This is my baseline average console system.
Don't hate it, but don't love it, either.

Recommended: No