Sure man. It's a little hard to explain, but when I started playing 2-3 months ago, in almost every game it felt like skill mattered more then anything. If I lost, I could often point to a mistake I made that caused it, or some decision I made that let my opponent outplay me. I thought I had FINALLY found a game that could rival mtg in terms of strategic depth and skill level, and maybe even exceed it as it had no 'mana screw' problems. Over the last few patches, however, that's become less and less true to me. Maybe I've just gotten better at the game and so therefore 'luck' is determining more games (since I make less mistakes overall). But, I've seen similar opinions from other players.
The devs have removed some of the heavy synergy and skill testing cards and so now many cards can be broken down into 'worth between X and Y points'. Even the control options are basically just 'remove X points from opponent'. The order in which you play things matters a bit less and the decision points seem to be narrowing overall.
Sure, there are engine cards (that generate more value over time) but that's still just a simple math calculation (7 pts now, +1 each turn if I don't kill it). I'm not saying there aren't levels of skill or decisions to be made, it's just not as deep as it was.
It was REALLY bad until this most recent patch, as the top deck (dwarves) was pretty brainless to play and play against. Since it was nerfed, the meta is a lot more diverse and some slightly more interactive decks have popped up, but it still isn't as good as it was before. It was a step in the right direction, but only a baby step really.
I, too, am really hoping for a mtg:arena invite. The simple ability to respond to your opponent's plays adds so much strategic depth, that any game without that option is operating at a handicap imo. Eternal technically has it, but in a stripped down way and they added a bunch of other issues that turned me off from it.
Until then, Gwent is still the best option I've found out of Hearthstone, Eternal, Hex and Gwent. Especially if you are looking for free to play. Hex is the most like mtg, but my understanding is the ftp mode is too slow and I'd end up spending a fair amount to play it the way I want. If I'm willing to spend that kind of money on a game, I'd just play mtgo then.