Artwork
+Variety in character portraits - characters actually change clothes.
+/- Unique artstyle, though not everyone's cup of tea.
-Some scenes have oddly shaped parts (look at Jane's foot in CG), creases at the abdominal areas that doesn't make sense, weird body contortions, hips that ends up at the waist etc.
-Artwork is generally of sub-par quality, from lines that were erased in between scenes and then filled back (Kira's chin) to color that went outside the line (Jane's thigh). This is especially so towards the end of the game.
-Minimal background with just object outlines. Maybe it is a stylistic choice, but when the whole game is like that it gets dreary fast.
Literary
+Written in English with no errors.
+Simple writing and easy to read.
Music / Voice Acting
+/- Generic music, though serviceable.
+/- Voice acting varies in quality, some parts are great, others less so.
Story
+An exemplary implementation of the mind-control genre, as the control increases gradually and feels more natural.
+/-Linear story narrative with no branching options except at the end.
+/-The whole story is told entirely from the perspective of the main character, without exploration of the other character's mindset/thought process.
-Inconsistent plotlines:
- 'Musician' main character that never picked up an instrument, and is actually a genius inventor that created the mind-controlling device.
- Main character claims that Noelle searches his room every few days (hence he cannot have porn mags), yet is somehow able to procure items and outfits in later stages of the game.
- The whole deal with Noelle's ending.
-Very little in the way of story progression. Your mind control becomes stronger with every new day, and the family is none the wiser. With no challenges to overcome and no issues to work on, it is simply a question of "which scene will I unlock today?"
-Not much character development. The cast of characters barely interact with each other, and the main character does not show interest in any of the characters aside from sex.
Decision Points
+/-Wrong choices results in extra CGs. To unlock every CG be prepared to save and load often.
-Ambiguous choices. The decision points in a VN should communicate the intent behind the choices to the player, but here quite often you'll find choices that are similar in nature, resulting in a save-scum/brute-force kind of gameplay.
-True ending locked until you have gone through with every other endings. Since there is no NG+ anyway, I don't see the point behind the restriction. It just means loading a save file and picking a different option.
H-Scenes
+/-Scenes are relatively mild, and with the genre of mind-control it just feels like there are quite a few unexplored avenues. The main character can rewrite the very sense of logic of the subject, yet all he did was to make the subjects feel that it is natural to have sex with him.
-H-scenes are short, and does not take advantage of the fact that it is a VN. H-scenes consist mainly of moans, gasps and sexual dialogs, and rarely give exposition on the situation and setting.
Closing
Snow Daze is unfortunately riddled with unrealized potential. While it is by no means a terrible VN, it also feels lacking in quite a few aspects. It is relatively short and easy enough to read, so give it a go if you have exhausted other games in the genre, but otherwise I would suggest to go with other choices.