I personally had high hopes for this show. Intriguing idea with modern FX could have put this show on must watch list of any sci-fi fan.

Unfortunately, after finishing 10 episodes I could not recommend it as a sci-fi show. I cannot say it was a total waste of time, I do enjoy well done visuals (even though this show does not have the best FX. To be fair I cannot expect superb FX from average show)

Main issue as many pointed out is the script and scientific flaws. Many complain about overabundance of PC and it is true, however, sci-fi genre always tackled current political or social issues in one way or another. So, I'd say that PC issue alone would not ruin this show.

True sci-fi ALWAYS builds upon known scientific knowledge and either incorporates known but not proves scientific concepts or makes bold extrapolations based on available knowledge. Not so in LiS. So many things just happen like magic.

Faulty science: F.e in first episode water freezes from bottom up and super fast. Cool FX not cool for sci-fi. It would be fine in fantasy genre in show like Shennara Chronicles but not in LiS. Could have been fixed by for example using gallium, would also add to "alien" factor of the planet itself that has lakes of gallium.

My personal pet peeve is disregard for physical properties of objects like weight. In episode where dr Smith is carrying a part of the robot as though it is a plastic prop belongs only to bloopers. Unless, dr. Smith is an incarnation of Thor itself... Hmm... I understand that all those props are mostly plastic, but but but for goodness sake at least fake it that it is heavy... Disregard for weight puts sci-fi show into fantasy genre automatically. (btw dr Smith character is quite supernatural so she might be Loki's/Thor's sister or girlfriend or maybe even mother of both because her cunning ability to see everything, know everything and spin everything is well beyond of capabilities of us mere mortals)

Inconsistencies: Scenario with above mentioned lake in 1st episode. Water in lake rapidly froze indicating temperatures way below freezing point, yet, the rest of the crew walk around with exposed limbs not experiencing any effects of cold. Could have been fixed by adding some type of personal heating cooling technology.

Few minutes later it rains and water pools on the ice before instantly freezing. Again, water had to be super heated and dropped from 10ft above their heads to avoid freezing and precipitating as snow/ice to achieve such effect.

Another one in the same episode, it seems despite of freezing cold subzero temperatures, couple hundred feet away there is vegetation and life. Can only be explained by magic. If they wanted to go into extreme environments in small area then artificial environment must be employed, something like in Hunger Games. It could have added additional mystery and "alien" factor to the planet and would add planet itself as an integral part of the story (otherwise, based on 10 episodes planet itself has no significance whatsoever)

There are also quite a good amount of holes in the story itself and plentiful amount of quite ridiculous decisions made by the crop of humanity...

So all in all if you are more into fantasy genre I would rate it as average show, watchable with kids deserving 5-7 stars. As a sci-fi show it does deserve 3-5 stars maximum. I am giving it 2* to counteract all those 10 star reviews many of which sound more like bot submitted or paid. I understand that some people probably enjoyed it very much. After all, all of us have different tastes and I assume target audience of this show is younger fantasy fans. But for sci-fi fan all inconsistencies and disregard for science are too painful too enjoy.

So yeah my 2 cents... (English is not my first language so pardon my grammatical errors) Oh, and script writers, if you will ever stumble upon my review I'd be glad to provide some ideas on how to improve sci-fi part of the show before it goes live ;)