Having put 6 hours into the campaign and about 2 in multiplayer, Andromeda deserves the mixed reception it's getting.
I'll start with the multiplayer co-op as it is still fun and for anyone who enjoyed it in ME3, it remains identical. Classes are familiar with pre-defined powers that match those in ME3. Gameplay feels a little faster with the jump-jet and automatic cover mechanics but, overall, the horde-type waves and objectives waves play out in much the same way. It feels a little restricted at the moment with 5 maps and only 2 objectives rounds in shorter 7-round matches (down from 10 waves in ME3) but all future MP content is free, The random unlocks return, along with the ability to spend real money on these "loot crates".
The campaign, on the other hand, provides an opening sequence so boring I ended up putting on subtitles and skipping through most of the dialogue (which saves you from having to endure the facial animations and voice acting - they really are awful). I always considered the early Citadel sequence in ME1 the worst opening sequence in the original trilogy but at least quests were designed to introduce you to all the species, their distinct personalities, and societal rules. Andromeda assumes you know most of this already but instead of picking up the pace, it rather sends you on a string of dull fetch quests before you can get to your ship and start exploring.
Just before you reach the second open-world area "Eos", the game begins to hint at a connection to events before the launch of the initiative but, for the first half dozen hours, nothing exciting happening with regards to the plot. Sure, the first aliens you meet try to shoot you but that was always going to happen. The initiative launched around the same time as the end of ME2 but while characters might reference things like the Citadel, Geth and Genophage, there is no mention of the attack by Sovereign, nor anything about a Reaper/AI threat. Perhaps this will be expanded upon but so far the entire initiative appears to be made up of the universe's most sheltered, unobservant population.
Gameplay is fine - they've taken a lot of designs wholesale from DA:Inquistion - but the writing and characters need to improve drastically to keep the game from being anything other than a competent sci-fi third-person shooter.
They've also managed to make planet scanning slower than ME2, albeit a lot prettier.