impressions

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I'm using XXX for 2 years and encountered myself some bugs in compiler, codegen and linker, as well as problems with leaky slow GC etc. However I still love the language and continue using it. I see bugs get fixed with each release, it gets more and more stable. I've learnt to work around remaining problems and now it's my language of choice for most tasks.
XXX is fast and low-level as C (or even lower, with its inline asm) when I need it, it's abstract and high-level as Haskell when I need it, it's simple and convenient as Python or Ruby when I need it. No other language can do it all.
I've used C++ for many years (and still do, it's inevitable in some fields), the pain, the pain.
I've used Perl (it still serves my company web site) but it's really insane.
I've used Ruby and loved it at first (we all were young), but then got tired of slowness and dynamic typing.
I've used C# and it's ok for some fields but not really suitable for others. And CLR is Windows-only while Mono sucked everywhere.
I've used OCaml and loved it (my previous long-time language of choice for most tasks), but got tired of verbosity, bad Windows support and single-threadedness.
I've used Haskell a bit and it's great but sometimes too restricting and not really suitable for low-level stuff.
I've used Haxe and it's fine for its niche but quite limited in others.
I've used ATS and it's great (they made everything Rust makers dreamed of before it was cool) but too hard to use in practice. And Windows version required Cygwin too.
I've used Elm a bit but it's obviously a very niche thing.
I've used Idris and I'm using it right now for one project, if you really want to see buggy codegen and libraries, go get Idris. ;)
And I've used XXX. While it has its problems, it's still pretty close to the best offer.