A colleague of mine at work is from time to time saying me just "Du hast es gut" and laughing... I asked him a couple of times what does it mean as I am not native and couldn't find any info regarding that sentence in a colloquial context. He just replies "it means you have a good life"
In case it could help, he is from Mid/South-Hessen(Darmstadt) with a very strong accent.
I can not tell you anything else than you friend. "Du hast es gut" really just means that. It's going really well for you or you are lucky. Depending on context, it can refer to your life, your job, whatever...
Another example could be:
-Ich habe gestern meine Nebenkostenrückzahlung bekommen, 120€! Yesterday I got paid back some of my service charges
-Du hast es gut, ich musste sogar noch drauf zahlen! Lucky you, I even had to pay extra
Addendum: As mentioned by orithena in the comments and Dreamer in another answer, it often expresses envy or emphasizes, that oneself has bigger problems than the other person. However, this doesn't need to have a negative connotation. As with other remarks, this really depends on your delivery.
It's a colloquialism for "I envy you".
If the emphasis is on 'du', (You have it good) the implication is that, whatever you might have been complaining about, he has more to worry about than your paultry concerns. This is often done ironically, in a jokey way.
It reminds me of the Monty Python 4 Yorkshiremen sketch.
It might have different nuances of meanings depending on the context.
First of all, it simply is a short term for "You are doing well (in job, life, relationship, money, ...)"
The meaning could be either, ...
... acknowledging and commending your luck or success.
... voicing some moderate envy on your situation
... pushing your nose into your own sucess, in case you are complaing about minor stuff
... asking you to stop bragging
... simply acknowledging that you are in bad luck, but there is still sunshine in your life
... making fun of an unfortunate situation (see: 'you got it goin on')
... trying to change the topic on their lack of success/luck
Another native speaker here. The closest answer in my mind is:
"Lucky to be you"
My German is rough but my head instantly read "You have it good." Is there a reason this wouldn't be true? It's mildly surprising what I know to be an English idiom translates so well.
As a Dutchman and reading on WikiPedia that Darmstadt has a strong Lutheranian heritage, I hear an echo of Calvinism in this "Du hast es gut". In the protestant part of the Netherlands, there is still a sense of being uneasy with enjoying life. Dutchmen tend to comment on others who are not working or even enjoying themselves, resulting in benevolent comments that are not really disproving, but still reflect some uneasiness.
There is not much context provided, but I can imagine @blfuentes being either nicely dressed, enjoying a good large cuppa coffee behind his or her desk or sitting somewhat laid back in the office chair.
This is somewhat similar to the answer by @dreamer who suggests it might mean "I envy you".
English colloquial equivalents would be
Good for you!
or
Lucky you!
both of which are close to the literal translation (which doesn't work like that in English)
you have it well
The sentiment expressed depends a lot on context in the conversation and the accentuation used and can range from
indifferent but active listening ("Ja, echt...")
positive support including some admiration
implicit prompt to elaborate more on whether you feel you are doing well and whether you like it or whether you think it'll continue like this
envy in the sense of "I wish I was doing that well"
caution in the sense of "don't push your luck, it may run out"
