(Note: I am rating this manga based off my enjoyment, not my objective view)
1/10 no Hanayome is an enjoyable manga, if you like borderline hentai with a semi-decent plot and characters.
Here is a quick run-down of things that should be mentioned but aren't on the official synopsis on MAL:
Zaizen (the MC) had a girlfriend (Natsuki) in high school. She asked for 20 million yen to help with her ill mother but she never returned again. A few years later, Zaizen has to choose 1 of the 10 candidates to marry. The problem is apparently one of the candidates is Natsuki but with a different appearance. There is also the Joker, in which if she is chosen to be married, Zaizen will lose his entire fortune. There are also 2 other candidates who are solely after his money. Which means 6/10 are 'regular' participants.
I did enjoy this manga, even though neither 2 of my favourite girls won the game, which sucks.
The art is great, about half of the characters are decently written-the other half you might as well forget about.
The ending is bittersweet, it features a time skip 4 years later with Zaizen and the wife being happy together, with a quick mention of what all the other past characters are up to now.
If you like this manga, I highly recommend Tamarowa, it's almost an identical premise except from a woman's perspective as a marriage candidate