your opinion about the colle system?

(Note: The Colle is pronounced 'Col' and not 'Collie' as in the dog !)

Agree with chessrengu the version with b3 is perfectly good, and played by players like Yusupov. Possibly Yusupov explains the opening a bit in his training books.

Kramnik and even Carlsen have played it now and then, so it can´t be bad.

Hate it. Super boring

I played the Colle system naturally(without being taught) and it is one of the best, a lot of development and safety, definitely for an attack and defense player. 

The Colle System is a viable transpositional line into other openings like 1.Nf3 Nf6 2.d4 d5 3.e3 e6 4.a3 c5 5.c4 Nc6 6.Nc3 a6 is a Semi-Tarrasch Defence and there are probably many other viable transpositions possible 

1.Nf3 Nf6 2.d4 d5 3.e3 Colle System 3.c6 4.c4 Slav Defence : Modern Quiet Variation 4.e6 5.a3 Nbd7 6.Nc3 Semi-Slav Defence : Main Line , Normal Variation 6.a3 

1.Nf3 Nf6 2.d4 d5 3.e3 Colle System 3.Bf5 4.c4 c6 Slav Defence : Modern Quiet Schallop Defence 

1.Nf3 Nf6 2.d4 d5 3.e3 Colle System 3.g6 4.c4 c6 5.Nc3 Bg7 Gruenfeld Defence : Burille Variation 5.c6 

I like it

yeah

1.Nf3 Nf6 2.d4 d5 3.e3 Colle System 3.b6 4.c4 e6 5.Nc3 Bb7 Queens Indian Defence : Spassky System 4.Bb7 5.Nc3 d5

It's what happens when you get your move order all wrong trying to play London.

Very solid and respectable opening. Can be quite venomous if the opponent underestimates it.

Not very bad but not very good nice for beginners untill 1400 absolute trash for above 1800 and of course why would anyone want to play the colle and London system there are many much better choices if you wanna play 1.d4

Hikaru Nakamura plays the Colle (Zuckertort) in a large percentage of his online games, as white.

He often starts via Nimzo-Larsen and then transposes.

Something like this, usually.

He even plays boungcloud and botez gambit speed runs and defeat everyone because he is better player than everybody

It doesn't mean that botez gambit is a very good opening 

Super grandmasters can beat upto international master with any opening that doesn't mean that opening is good

Ya but the opening played between two super grandmasters is good

Yes, Hikaru does play a lot of offbeat openings, especially for his speedruns.

But the Colle-Zuckertort (reached via different transpositions) is one of his main openings, when he's playing online in serious (money) events. It's not just a random opening - it's a big part of his repertoire.